• The thin iron plate of round form and black colour carved in sukidashi-bori with the design of rocks, waves, bridge, mountain pavilion and 5-storey pagoda under the moon, on both sides, alluding to Todai-ji temple in Nara. Slightly rounded rectangular hitsu-ana probably pierced later. Very narrow raised rim as usual in katsushi tsuba. In a modern wooden box.

    Late Muromachi period, 16th century. Dimensions: 81.1 x 79.5 x 3. mm (seppa-dai), 2.2 mm (base plate), 4.4. (rim).

    Reference: “Art of the Samurai” on page 232, №140: ”Kamakura tsuba with Sangatsu-do tower and bridge. Muromachi period, 16th century. 83 mm x 80 mm. Unsigned. Tokyo National Museum. The mountain pavilion and bridge carved in sunken relief on the iron tsuba – both part of Tōdai-ji, a temple in Nara – are detailed in fine kebori (line) engraving. As a result of the chiselling used to create the relief, the ground of the piece is relatively thin”. Also page 41 in Tsuba Kanshoki. Kazutaro Torogoye, 1975 [LIB-1480.2018].

    This tsuba is very much similar to TSU-0384.  
  • Iron tsuba of round form pierced with design of paulownia (kiri) in a circle in positive silhouette (ji-sukashi), details carved in low relief (sukidashi-bori). Hitsu-ana were cut later and then both plugged with lead or pewter. Brown patina. The most unusual characteristic of this tsuba is its 'positiveness': the absolute majority of Kamakura-bori tsuba are of ko-sukashi type, i.e. with small openings, presenting the motif in negative silhouette. Kamakura-bori school. Muromachi period (ca. 1450). Size: Height: 85.1 mm, width: 84.8 mm, thickness at seppa-dai: 3.2 mm, at rim: 2.8 mm. Weight: 79.1 g. A similar tsuba is presented at Japanese Swords and Sword Fittings from the Collection of Dr. Walter Ames Compton. Part I. Christie's, New York, March 31, 1992, page 11, №3: "A Kamakura-bori tsuba. Muromachi period, ca. 1450. The round iron plate is pierced with an openwork design of a paulownia crest (kiri-mon), the surface details of which are carved in low relief. The design is repeated on the reverse. The edge is slightly raised  and the rim has some iron bones. 78 mm x 77 mm x 3.5 mm. Hakogaki by Sato Kanzan, dated summer 1973."

    Compton's Collection, Part I, p. 11, №3.

  • Six-lobed iron tsuba in a form of three ginkgo tree leaves (icho), separated with three small triangular openings (ko-sukashi). Leaves have raised rim and decorated with various family crests (mon) in low relief carving (sukidashi-bori). On obverse: bamboo stems and leaves, knotted geese, paulownia (kiri), plum blossom (ume), and ivy. On reverse: pine needles and cone, maple leaf (kaede), bamboo, stylized plum blossom, and Genji-mon. Black patina. Kozuka hitsu-ana is original, with raised rim. Copper sekigane. Kamakura-bori school. Late Muromachi period (ca. 1550). Size: Height: 81.1 mm. Width: 90.0 mm. Thickness at seppa-dai: 3.3 mm. Weight: 120.4 g.
  • Iron tsuba of round form with design of hatchet executed in openwork (sukashi) and three fan panels motif on both sides carved in low relief (sukidashi-bori). Designs on the fan panels - face: bellflower, plum blossom in mist, grass leaves; - back: clouds, grass, and half plum blossom in mist. Copper sekigane. Koga-hitsu-ana probably cut out on a later date. Kamakura or kamakura-bori school. Edo period. Height: 83.8 mm, Width: 82.2 mm, Thickness at seppa-dai: 3.2 mm. NBTHK certificate № 4005500: Hozon (worthy of preservation).
  • Round iron plate of grey colour decorated in low relief (sukidashi-bori) on the face with sea waves (both layered waves, seigaiha, and rough waves, araumi), sago palm (cycas revoluta, sotetsu), presumably orchid leaves (ran) - five of them - hanging from the above, and  reeds (ashi), and on the back with waves (seigaiha only), rocks, chrysanthemums (kiku), clove (chori), reed, and presumably orchid leaves - three of them - hanging from the above. The kozuka-hitsu-ana was probably cut later. The plate is lacking the raised rim, typical for the kamakura-bori school. Muromachi period Dimensions: Height: 76.8 mm, width: 76.1 mm, Thickness at seppa-dai: 3.3 mm, at rim 2.0 mm. Height of nakago-ana: 29 mm. Weight: 82.4 g. NBTHK certificate № 402152: Hozon - "Worthy of preservation". A similar (most probably the same) tsuba is illustrated and described at Butterfield & Butterfield. IMPORTANT JAPANESE SWORDS, SWORD FITTINGS AND ARMOR. Auction Monday, November 19th, 1979. Sale # 3063 under lot № 66. It describes the piece as following: “Kamakura bori work of the Muromachi period. Round thin plate with some small iron bones in the edge. Carved with design of plants (sego palm) rocks, and waves on the face. The back has half of two chrysanthemums, waves, clove, and sego palm leaves. The kozuka-hitsu has been added and later enlarged. A good typical example without the rim most have. Diameter: 7.7 cm., thickness 2.5 mm. Estimated price $100-200":

    Butterfield & Butterfield, 1979. Sale # 3063, lot № 66.

  • Mokkō-form (kirikomi-mokkō-gata) iron plate of grey colour decorated on both sides with waves, reeds, cloud, pagoda, and thatched hut in low relief (sukidashi-bori). The kozuka-hitsu-ana is original, the kogai-hitsu-ana probably cut later (lacks raised rim, fuchidoru). Wide (5.7 mm) raised rim of rounded square dote-mimi type, decorated with fine cross-hatching. Momoyama period, 16th century. Dimensions: Height: 75.9 mm, width: 76.4 mm, Thickness at seppa-dai: 2.3 mm, at rim 4.4 mm. Kamakura-bori tsuba of such a form is unusual. The rim is also unusual; it is possible that cross-hatching was done as a preparatory step for damascening, or the the damascening (gold or silver) disappeared with passage of time.
  • Thin iron plate of round form and black color carved in sukidashi-bori with design of rocks, waves, clouds, temple gates (torii), mountain pavilion and 5-storey pagoda on both sides, alluding to Todai-ji temple in Nara. Hitsu-ana pierced later. Very narrow very slightly raised rim. Copper sekigane.

    Late Muromachi period, 16th century. Dimensions: 88.7 x 88.0 x 2.4 mm (seppa-dai), 1.8 mm (base plate).

    Reference: “Art of the Samurai” on page 232, №140: ”Kamakura tsuba with Sangatsu-do tower and bridge. Muromachi period, 16th century. 83 mm x 80 mm. Unsigned. Tokyo National Museum. The mountain pavilion and bridge carved in sunken relief on the iron tsuba – both part of Tōdai-ji, a temple in Nara – are detailed in fine kebori (line) engraving. As a result of the chiseling used to create the relief, the ground of the piece is relatively thin".

     
  • The thin, four-lobed iron plate of brownish color is carved on each side with two concentric grooves in the middle of the web, and with four thin scroll lines (handles, kan) that follow the shape of the rim. The hitsu-ana were added at a later date.  Copper sekigane. Kamakura-bori school. Muromachi period, circa 1400-1550. Size: Height 80.4 mm, width 79.0 mm, thickness 3.2 mm at seppa-dai and 2.7 mm at the rim. Weight: 97.7 g. NBTHK Certificate №4004241: 'Hozon' attestation. As for the motif: the concentric circles is a widespread and generic design. It is described by John W. Dower [The Elements of Japanese Design, 1985, p. 132, #2201-30] as follows: Circle: Enclosure (wa). As a crest by itself, the cirlce carries obvious connotations of perfection, harmony, completeness, integrity, even peace. [...] Ordinary circles are labeled according to their thickness, with terminology ranging from hairline to "snake's eye". The motif that is described by both Compton Collection and R.E. Haynes as "scrolls", presented by John W. Dower as "Handle (kan): Although probably a purely ornamental and nonrepresentational design in origin, over the centuries this motif acquired the label kan, denoting its resemblance to the metal handles traditionally used on chests of drawers. [...] Very possibly the "handle" motif represents an early abstract version of the popular mokko, or melon pattern." Early Chinese Taoists claimed that special melon was associated with the Eastern Paradise of Mount Horai just as life-giving peaches were associated with the Western Paradise of the Kunlun Mountains. [...] A design motif called mokko (also translated as "melon" in accordance with the two ideographs with which it is written) may have nothing to do with the fruit. Mokko designs... are widely used as crests of both private families and Shinto shrines and are repeated as background designs that evoke a sense of classicism" [Symbols of Japan. Merrily Baird, 2001]. There is a look alike tsuba at Dr. Walter A. Compton Collection, 1992, Christie’s auction, Part II, pp. 14-15, №16: The description goes: “A kamakurabori type tsubaMuromachi period, circa 1400. The thin, six-lobed iron plate is carved on each side with a wide groove that follows the shape of the rim, and with six scroll lines and a single thin circular groove. […] The hitsu-ana was added at a later date, circa 1500-1550.  Height 8.3 cm, width 8.6 cm, thickness 2.5 mm. The tsuba was initially intended  to be mounted on a tachi of the battle type in use from Nambokucho to early Muromachi period (1333-1400)”. Sold at $935. And another one in Robert E. Haynes Catalog #9 on page 24-25 under №23: R.E. Haynes description: “Typical later Kamakura-bori style work. This type of plate and carving show the uniform work produced by several schools in the Muromachi period. Some had brass inlay and others were just carved as this one is. The hitsu are later. Ca. 1550. Ht. 8.8 cm, Th. 3.25 mm”. Sold for $175.    
  • Iron tsuba of round form with design of two parallel crossbars and two rings in openwork (sukashi). Rounded square rim. Moderate iron bones (tekkotsu) allover. Copper sekigane. Kanayama school. Momoyama period (or late Muromachi). Size: 74.5 x 74.0 x 5.5 mm. The rings possibly represent the sun and the moon, or the stars. The parallel crossbars may represent the "two stripes" (futatsu biki) family crest (incl. Ashikaga family).
  • Iron tsuba of round form decorated with a ladle, pestle, mortar, and rice sickle in positive silhouette openwork (nikubori-ji-sukashi). Slightly rounded rim with iron bones (tekkotsu). Seppa-dai plugged with copper fittings (sekigane). Silver patina. The design resembles mochi-making utensils; mochi (rice cake) symbolizes longevity. Kanayama school, c. 1590 (Momoyama period). Note: unusually large size for a Kanayama tsuba: diameter 79.5 mm, thickness at seppa-dai: 5.5 mm, at rim: 6.0 mm. Concerning the design: While the ladle and pestle are clear, the mortar (under the seppa-dai), and the sickle (to the left) require certain imagination.
  • Iron tsuba of round form with design of slanting rays of light (shakoh) or clock gear (tokei) in openwork (sukashi). Commonly considered a Christian / Jesuit motif. Round-cornered rim. Copper sekigane. Momoyama period: Late 16th century (Tensho/Keicho era). Height: 72.5 mm, Width: 72.2 mm, Rim thickness: 5.5 mm, Center thickness: 5.3 mm. Round-cornered rim. Provenance: Sasano collection. Sasano Masayuki, Japanese Sword Guards Masterpieces from The Sasano Collection, Part I, № 136: "The general belief that this design represents the gear of a clock is erroneous, rather it shows the slanting rays of light from a cross, with the small diamond shapes representing the upright and transverse bars. The Christian influence is obvious..."  
  • Iron tsuba of round form with design of the Chinese character for cinnabar (shu-no-ji) in openwork (sukashi). Round-cornered rim. Copper sekigane. Kanayama school. Early Edo period: Early 17th century (Kan-ei era). Height: 70.0 mm. Width: 69.6 mm. Rim thickness: 6.8 mm. Center thickness: 5.8 mm. Provenance: Sasano Masayuki Collection, № 139: "Many areas have a coarse texture and strong tekkotsu, with the thickness of the metal graduating from the rim to the seppa-dai. The combined color of the iron and motif date this work to the early Edo period".  
  • A very thin kobushi-gata form iron tsuba decorated in openwork (sukashi), some openings filled with grey metal (silver or pewter) treated in a way to resemble cracked ice, ginkgo leaf to recto and plum blossoms to verso in low-relief (takabori) and gold inlay (zōgan), and unevenly folded over rim (hineri-mimi). The overall theme of the piece is linked to the icy ponds, falling ginkgo leaves and blossoming plums in the late winter.

    Size: 84 x 80 mm, thickness (center): 2 mm.

    Signed: Yamashiro no kuni Fushimi no ju Kaneie [Kaneie of Fushimi in Yamashiro Province] [山城國伏見住金家], with Kaō.

    Probably the work of Meijin-Shodai Kaneie (c. 1580 – 1600).

    The silver or pewter inlays likely a later work that may be attributed to Goto Ichijo (1791 – 1876) or one of his apprentices in the late 19th century, possibly as a tribute to the great Kaneie masters. Here is an article by Steve Waszak dedicated to Kaneie masters and this tsuba in particular.

    Kaneie

    For many tosogu aficionados, this name reigns supreme among all tsubako across Japanese history.  The first Kaneie is celebrated for many things.  He is recognized as being the first ever to bring pictorial landscape subjects to a canvas so small as that of a tsuba plate.  His skill in being able to render classical Chinese landscape themes while working with a material as unyielding as steel, and to do so with the sensitivity he does, is nothing short of astounding.   The quality of his workmanship — especially that of his exquisitely carved motif elements and the extraordinary deftness of his tsuchime (槌目 or 鎚目, hammer-blow) utilizing such thin plates — astonishes even to this day.  His sensibilities concerning the shaping of his sword guards and the presentation of the rims were no less innovative than his subject matter.  He was among the very first to regularly sign his name as a tsuba smith.  And it is likely that he served the great warlord Toyotomi Hideyoshi in the latter years of the 16th century.
    Despite the great fame and reputation of Kaneie, very little of the lives of the two men who are seen by most scholars as the “true Kaneie” tsubako of the Momoyama and earliest Edo Periods is known to us now.  They were both smiths working in steel, with occasional added soft-metal inlay (usually serving to highlight features), and both made sword guards of the same style, using subject matter focused on landscapes, allusions to historical events, or religious themes.  The first of these men is often referred to as “O-Shodai,” or Great First Generation, while the second is known as “Meijin-Shodai,” or Famous First Generation.  While some see subsequent generations stemming from these first two men, others have the O-Shodai and the Meijin-Shodai as THE two true Kaneie and make a sharp distinction between these two smiths and any others who may share the name.
    The work of the O-Shodai may appear with two different mei.  One of these is written “Joshu Fushimi Ju Kaneie,” while his work may also carry a mei reading “Yamashiro no Kuni Fushimi Ju Kaneie.”  It is thought by some scholars that the earlier works present with the “Joshu” mei, while his later works feature the “Yamashiro” mei.  However, there are only some five or six tsuba extant with the “Joshu” signature, so we should not necessarily see works with the “Yamashiro” signature as dating only to the latest years of his working life.  The answers to the questions of exactly when Kaneie might have begun his life as a tsubako, or how old he was when he moved to sign his works with the “Yamashiro” mei, will probably remain shrouded in uncertainty.
    The association between Kaneie and Toyotomi Hideyoshi is speculative, to be sure, but the circumstantial evidence is tantalizing.  The area of Fushimi is thought to have been an entirely unremarkable land prior to Hideyoshi’s building of a castle there, so it would seem unlikely that the first Kaneie would have been working in such a nondescript place, much less including the place name in his mei, before Hideyoshi’s putting it on the map, so to speak.  Why emphasize such pride of place in one’s signature unless the place itself carries a certain weight?  The name “Kaneie” translates roughly to “gold family,” which, given Hideyoshi’s notorious love of gold, would seem too much of a coincidence when combined with the explicit mention of Fushimi in the signatures.  Combine this with the consideration of what is an equally compelling relationship between the celebrated tsubako Nobuie and Oda Nobunaga (“Nobuie” means roughly “of the family of “Nobu”), whom Hideyoshi served as a top general until Oda’s demise in 1582, and the circumstantial evidence becomes even harder to deny the plausibility of.  Oda, ever the innovator, may have been the one responsible for birthing the practice of tsubako regularly signing their works.  Having a superb smith like Nobuie affix the name to the tsuba as a regular practice establishes a sort of “brand name,” a brand coming with the seal of approval of Oda Nobunaga.  It is more than possible that Nobunaga may have then used these valuable sword guards as rewards given to vassals and other important relations to honour them for their services to him, a practice that would have allowed Nobunaga to avoid having to use gold, guns, swords, horses, or land to do so.  The awarding of a magnificent Nobuie tsuba to a deserving warrior, an appreciated ally, or a family member would bring honour to the recipient, of course, but would also honour the maker of the sword guard, and even the giver of the object. Such a way of thinking would be absolutely typical of him, and given that both Oda Nobunaga and Nobuie were men of Kiyosu in Owari in the early Momoyama Period, it does not strain credulity to imagine that the above dynamic could have occurred in just this way.  If indeed it did, Toyotomi Hideyoshi is unlikely to have let this pass unnoticed.  He may even have been so honoured himself!  When he rose to power very shortly after Oda’s death, then, and when he reinforced and consolidated that power in the late 1580s and early 1590s, which included the building of the castle at Fushimi, perhaps he sought to emulate the Oda vision and practice of establishing a “royal tsubako.”  If so, Kaneie would have been that smith.
    As noted, this scenario is speculative, and not a little romantic.  This does not mean, however, that it is in fact not likely, for there would be a number of coincidences involved for it to be entirely false.
    Tsuba scholars will say that Kaneie’s skills in the making of his sword guards indicate an armour-making background.  This is an interesting viewpoint, but one can’t help but wonder how many armourers were possessed of such fluent literacy in lyrical Chinese historical tales that they could then represent them as motifs on steel plates.  Kaneie subjects often are in the form of Chinese landscapes and allusions, as noted, one of which — The Eight Views of the Xiao and the Xiang — was very well known as a famous subject of Chinese painting and poetry from the Song Dynasty.  There exist Kaneie tsuba which depicts at least some of these “views,” and it seems unlikely that if one or more of them were to be created, not all of them would be, in a sort of “series.”  The cultural and literary fluency Kaneie would seem to have had, then, may suggest a Buddhist background, and indeed, some of the subjects seen are explicitly Buddhist in nature.  Perhaps his background then, somehow offering a dovetailing of metalwork and Buddhist teachings; in any event, we are all the richer for at least some of the works of Kaneie to have survived to reach us today.
    One of the hallmarks of Kaneie tsuba (real ones) is the extreme thinness of the plate, combined with utterly superb tsuchime expression of that plate.  To be able to hammer the plate to achieve such strength of expression while the plate is so thin is seen by the Japanese as practically miraculous.  A notable and important kantei point between the early masterpieces by the two “Shodai” Kaneie and the tsuba made by followers is this thinness of the plate.  Another kantei point:  because the plate is so thin when raised areas representing motif elements are present, they are inlaid into the plate, because trying to carve them from such a thin plate would be practically impossible:  the likelihood of piercing the plate would be high, and the plate in that area, even if not pierced, would be significantly weakened by trying to manage the raising of a motif element from the plate.  In real Kaneie works, then, one would expect any raised motif elements to be inlaid.
    Other highlights:  the “Shodai” Kaneie are famous for the kobushi-gata (拳形) or “fist-shaped” design in their work, but despite this, there actually aren’t that many extant sword guards boasting this shape.  Another feature for which the Kaneie are justly famous is their folding over of the lip of the rim onto the plate in a very tasteful manner, just here and there, rather than uniformly across the tsuba.  However, again, this feature is actually not commonly seen, either.  The combination, then, of a kobushi-gata shape with the rim folded over in just a few areas is that much rarer.
    Which brings us to the featured piece.
    Here is a Kaneie tsuba, a “Meijin-Shodai” Kaneie, which presents with a very thin plate, being between 1.5 and 2mm in thickness.  The motif elements are inlaid, as we should expect.  The sugata (姿, shape) is Kobushi-gata with the rim folded over in only a few places, representing a relatively infrequently encountered form, as stated.  The tsuba here is fortunate not to have any added hitsu-ana, unlike many or most other Kaneie do.  The sukashi elements are fascinating to consider, being difficult to determine the meaning of; however, the raised elements clearly point to a seasonal motif, with cherry and plum blossoms on the omote for Spring, and ginkgo on the ura for Fall.  The inlaid metal in two of the openings — silver, shibuichi, or pewter, perhaps — is very likely a later addition, probably 19th-century, and more specifically, late-19th-century.  The finishing on these inlaid portions has all the hallmarks of Goto Ichijo workmanship.  Namely, the treatment of the surface of the inlay to resemble fallen snow (in the Japanese sense of things) is expressed in a very Ichijo sense of things, and, given the great importance of Kaneie tsuba, and the seasonal expression the motif of the guard has, it is plausible that the inlay is Ichijo work or that of one of his top students.  In any event, this inlay complements the rest of the tsuba beautifully.  The inlay also resembles the art of kintsugi (金継ぎ, golden joinery) or the Japanese practice of ceramic repair using lacquer when a piece is particularly special or important.  In this way, a nod is given to Tea Culture, too, creating a wonderful blending of associations and allusions, typical of the highest Japanese aesthetic sense.
    At 8.4cm, the tsuba is of an excellent size and is in great condition (no rust, no deep rust pitting, no fire damage).  There is, intriguingly, one small sign of battle damage at 6:00 on the guard:  it would seem a sword blow cut into the tsuba at the rim, and penetrated slightly into the plate.  The superb repair represented by a little stitch or two right at the rim and along a few millimetres of the plate is visible on very close inspection.  The repair is old, probably nearly contemporary with when the tsuba was made.  Given the high status of Kaneie in their lifetime (as tsubako for Hideyoshi, one might imagine their importance), and given the obvious high quality of this piece, it is not surprising that the finest repair efforts were put into its care.
    The name Kaneie justly enjoys its fame and accolades as pre-eminent among the tens of thousands of tsubako in Japanese history.  We are fortunate indeed to have had a small number of the works of the early masters survive to this day.  The first of their kind, and as most scholars and aficionados would wholeheartedly agree, the best of their kind, Kaneie sword guards remain among the very finest examples of the Japanese metal-working traditions.
  • Kanmuri - a classic court cap, made of lacquered wood and paper. It is traditionally made by creating a skeleton, or harinuki, of paper on a wooden form. The outside of the hari-nuki is lacquered so as to keep its shape, and then the body of ra silk is layed on top. The entire thing is lacquered stiff.

    Size: Height:20cm; Width: 21cm; Depth: 20cm.

    Probably Taishō period (1912-1926), or later. Certain information is provided at http://www.sengokudaimyo.com/garb/garb.html In a wooden box without inscriptions.
  • Iron tsuba with hammer marked surface and design of a plum and cherry blossoms to the right of nakaga-ana in openwork (sukashi). Raised rim, typical to katchushi school. The thickness of the plate provides for later Muromachi period making.

    Late Muromachi period (1514-1573). Size: 85.8 x 85.0 x 3.6 (center), 4.1 (rim) mm; weight: 136 g.  
  • Iron tsuba of circular form with a branch of loquat (biwa) pierced in positive silhouette (ji-sukashi) and carved in marubori technique (marubori-sukashi). Kozuka and kogai hitsu-ana are plugged with shakudo.

    Signature: Choshu Kawaji ju Hisatsugu saku. Chōshū school in Nagato province.

    According to M. Sesko 'Genealogies' Hisatsugu was a 4th generation Kawaji School master from Chōshū (present day Nagato), with the name Gonbei, formerly Toramatsu, adopted son of Tomohisa (1687-1743) [page 117]. For Tomohisa work see TSU-0104 in this collection.
  • Iron tsuba of oval form carved with a landscape motif. Kogai-hitsu-ana plugged with shakudo. Sekigane of copper.

    Signed: Chōshū Hagi-jū Tomohisa saku (長州萩住友久作).

    Tomohisa, adopted son of Rokurō'emon, was 3rd generation master of Kawaji School from Hagi in Nagato (Chōshū), lived 1687-1743 [M. Sesko 'Genealogies', page 117].

    Edo period, circa 1700. Dimensions: 71.1 x 66.8 x 2.9 mm For his adopted son Hisatsugu work see TSU-0103 in this collection.  
  • Iron tsuba of round form decorated with design of moon, stars, cloud, snowflake, gorintō, and Genji-mon in negative openwork (in-sukashi). Raised tubular rim (dote-mimi). Deep black patina, traces of lacquer. Naka-daka type of plate (thicker in center, getting thiner towards the rim). Visible gap between the rim and the plate. Dimensions: Height: 91.7 mm; Width: 90.8 mm; Thickness at seppa-dai: 2.5 mm, plate before rim: 2.2 mm, of the rim: 5.6 mm. At least Mid Muromachi period, 15th century, but possibly earlier. In 'Silver Book', commenting tsuba №34 Sasano writes: "The technique used to create the rim is the same used for the peak (koshimaki) of helmets (kabuto) during the Kamakura and Nanbokucho periods." On the other hand, the abundance of sukashi elements points towards later times, perhaps late Muromachi or even Momoyama period. "Gorintō is a grave stone composed of five pieces, piled on one the other, representing, from the bottom upward, earth, water, fire, wind, and heaven, respectively" [Nihon Tō Kōza, Volume VI, Part 1.  AFU, 1993, p. 6. / LIB-1554]. A romantic description of the piece may look like this: The air is scented (incense symbol); it's a graveyard, marked by gorintō; a winter (snowflake) evening or night (moon, stars); mist is rising from a ravine towards moon. I did not manage to find a katchūshi piece of this design, only a few Kamakura-bori tsuba:

    100 selected tsuba from European collections. Catalogue by Robert Haynes and Robert Burawoy, 1984, page 16, №5.

    Japanese Sword Fittings. Collection of G.H. Naunton, Esq., by Henri L. Joly, - 1912; №9.

    While the upper tsuba is dated end of Muromachi, the lower is attributed to the 17th century - Momoyama or early Edo period, though the author put this attribution under question. Deciphering of the strangely shaped opening to the left of nakago-ana is sometimes "a conventional scroll", and sometimes - a fern or bracken. I think mine is a cloud or mist, but I don't have any material evidence proving this understanding and came to conclusion by context only. It may easily be a dinosaurs playing ball. The fact that this thing always accompanies the Genji-mon, or incense symbol, it may be a scent itself.