Tsuba of oval form decorated with clematis six-petal flowers, tendrils, and leaves in cast brass with details carved in kebori, inlaid on iron plate carved in low relief  (kebori and sukidashi-bori). Hitsu-ana plugged with shakudō. Copper sekigane.

Heianjō (or Ōnin) school. Unsigned. Mid Muromachi period (1454-1513). Dimensions: 87.2 x 84.3 x 4.3 mm. Tsuba is illustrated and described in Gary D. Murtha's "Onin-Heianjo-Yoshiro" book on pages 38-39. Mid-Muromachi is the age attribution by Gary. “A picture book of Japanese sword guards. Victoria & Albert Museum“, published in 1927 presents us with a somewhat similar tsuba: "Floral ornament. Iron, with brass incrustation". V&A attributes the tsuba to Ōnin style, 16th century.

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:   While the upper tsuba is dated the 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 to prove this understanding, and I came to a conclusion based only on context. It may easily be dinosaurs playing ball. The fact that this thing always accompanies the Genji-mon, or incense symbol, it may be a scent itself.

Iron tsuba of round form inlaid with brass and shakudo (suemon-zōgan) with a design of tendrils, leaves, double gourds, and folding fan with two wild geese on the face and the same design only with a fan with two interlocked rings (wachigai) on the back. Design is supplemented with a round family crest (mon) of three fans in openwork (sukashi). Hitsu-ana and the mon are outlined with brass rope. Copper sekigane.

Some attribute such tsuba as belonging to Heianjō or even Yoshirō School, and date them to Momoyama period. I keep this piece under Ōnin rubric, late Muromachi, but this is just a question of personal preference.

Some inlay is missing, some repaired; traces of rust. Otherwise - decent condition.

Late Muromachi period (1514-1573). Size: 77.4 x 77.1 x 3.8 (center), 3.2 (rim) mm

Iron tsuba of round form with dam-shaped rim (dote-mimi) pierced with hitsu-ana and two udenuki-ana (probably cut later on) decorated in flat inlay (hira-zōgan) with vines and symbols of thunder or lightning (possibly - family crest, mon). Hitsu-ana and nakago-ana with copper sekigane.

Ōnin or Heianjō school, or, possibly Kaga or Umetada school. Momoyama period or earlier (Muromachi), 16th century. Unsigned.

Size:  64.5 x 63.8 x 2.2 (center), 4.2 (rim) mm.

Provenance: Lundgren Collection: [Japanese sword-fittings and metalwork in the Lundgren Collection. Published by Otsuka Kogeisha Co., Ltd., Tokyo 1992], №31; The Lundgren Collection of Japanese Swords, Sword Fittings and A Group of Miochin School Metalwork. Christie's Auction: Tuesday, 18 November 1997, London. Sales "GOTO-5881". Christie's, 1997, №2. Lundgren's description at Christie's: Heianjo tsuba. Unsigned. The circular plate decorated in brass hirazogan with flowers, plants and symbols of thunder, dote mimi and udenuki ana, late Muromachi period (16th century). Tokyo 1992 description: Sword guard with design of flowering plants and frets in inlay. Unsigned. Heianjo inlay school. 6.35 x 6.3 cm, thickness of rim 0.40 cm. Iron. Flat brass inlay. Muromachi-Momoyama Period, 16th century. Provenance: The Second John Harding. A somewhat look-a-like pieces can be found in various catalogues. The one in Naunton Collection, №172, is signed: Umetada of Yamashiro: "Iron, small, almost circular, with raised oval rim, inlaid all over with leaves and scrolls in brass hirazōgan."

Kyo school iron tsuba of round form decorated with an eight-plank bridge (yatsuhashi) and irises (kakitsubata) in openwork (sukashi).

Late Muromachi period, Tenbun era (early 16th centiry).

Dimensions: 80.0 x 77.2 x 4.1 mm.

The design alludes to the scene in 'Ise Monogatari', where Ariwara no Narihira being exiled from Kyoto to the Kanto region crossed the eight-plank bridge at Mikawa looking at the irises in bloom and composed a poem expressing his desire to return to Kyoto. A lot of tsuba have been produced with the similar design.

Reference: Masterpieces from the Sasano collection, 1994, p. 98, №69.  

Iron tsuba of four-lobbed mokkō form (possibly it was circular and then altered to produce the mokkō) with slightly raised rim decorated with three kukurizaru ('tied up monkey' toy) in openwork (sukashi) next to kogai-hitsu-ana; inlaid in red-ish copper (suaka) with the design of bamboo stems and leaves, and shapeless masses which most probably represent snow. Kozuka-hitsu-ana plugged with shakudo. Probably original kogai-hitsu-ana. Copper sekigane. Surface still covered with lacquer (urushi). Late Muromachi period (1514-1573). Size: 86.1 x 85.8 x 2.6 mm NBTHK Certificate №4002543: Hozon - "Worthy of preservation" (Attribution: Mumei Heianjō Zōgan)