Iron tsuba of round form with a butterfly (left) and dragonfly (right) design in openwork (sukashi), outlined with brass wire. The thin plate is also decorated with five concentric circular rows of brass dots (nail heads) in ten-zōgan; brass wire outlines the centre of the plate. School: Ōnin ten-zogan. Late Muromachi period, 16th century. Diameter: 88 mm, thickness at seppa-dai: 3.1 mm. Another tsuba of similar design, Tōshō school, is illustrated in this collection; see TSU-0353.2018. The design is referenced in LIB-1359.2017 Japanese Swords and Tsuba from the Professor A. Z. Freeman and the Phyllis Sharpe Memorial collections, Sotheby's, London, Thursday, 10 April 1997; p. 18, item 37: "pierced with two large formalised butterflies..."

Iron tsuba of round form with design of diamond-shaped family crest (waribishi-mon) in openwork (sukashi). Bevelled, raised rim. Kozuka-hitsu-ana plugged with tin or lead. Ko-Katchushi school. Early Muromachi period: Early 15th century (Oei era). Size: Height: 89.3 mm. Width: 89.0 mm. Rim thickness: 4.3 mm. Center thickness: 2.9 mm. Provenance: Sasano Masayuki Collection, № 41: "In this tsuba, a family crest incorporating four lozenges sits upright on the right side of the nakago-ana. The straight lines of the lozenge add substance and power. Initially, the crest creates confusion regarding the age, yet the overall impression is one lacking in vigor and probably dates rather later than Nanbokucho period".  

Yamagane tsuba of round form with design of a 14 petal chrysanthemum (kiku) in cast openwork (sukashi), with slightly raised rounded rim. Early Muromachi period (1393-1457). Size: Height: 64.5 mm; Width: 64.0 mm; Thickness at seppa-dai: 4.1 mm; Weight: 52.5 g. Provenance: Sasano collection (though not illustrated in the book 'Sasano: Japanese Sword Guard Masterpieces from the Sasano Collection, 1994', which only covers tsuba made of iron). Wooden box (tomobako) with inscription (hakogaki) by Sasano Masayuki. References: Illustrated on p. 140 at Tosogu: Treasure of the samurai by Graham Gemmell in the article Muromachi period tsuba by Robin Peverett, London, 1991, pp. 131-145. Sold at Sotheby's, London, Thursday 10 April 1997 Sotheby's, London, 1997 [Japanese Swords and Tsuba from the Professor A.Z. Freeman and the Phyllis Sharpe Memorial collections], p. 16: "A ko-kinko bronze Tsuba, early Muromachi period (1393-1453) of circular form, with raised rounded rim, pierced with kiku petals and with a small elongated kozuka-hitsu, the work appearing to be cast and finished by hand. 6.4cm, thickness at centre 4.15mm, at rim 4.8mm. With a Tomobako, bearing a hakogaki by Masayuki Sasano, with rating Shu. Estimated: £1,000-1,500." Hakogaki (courtesy M. Sesko): 古金工 鐔 Ko-Kinkō tsuba 菊花透 無銘 山銅地透 時代 室町前期 古雅入念 秀作 昭和戊辰年伏月 素心鑑 kikka-sukashi, mumei yamagane, ji-sukashi jidai Muromachi-zenki koga nyūnen, shūsaku Showa tsuchinoe-tatsudoshi fukugetsu Soshinkan Kikka-sukashi, unsigned. Of yamagane and with ji-sukashi. Era is early Muromachi period. Excellent and carefully made work of classical elegance. June in the year of the dragon of the Shōwa era (1988) Soshinkan (pen name of Sasano Masayuki).  

Iron tsuba of round form with design of  hatchet, snowflake, and triple diamond in openwork (ko-sukashi), and inlaid with five concentric circles of brass dots (ten-zōgan) and brass inner circular line. Sukashi elements outlined in brass.

Late Muromachi period. Diameter: 82.4 mm; Thickness: 3.0 mm The triple lozenge (or diamond) is similar to the one on TSU-305 from Sasano Collection # 15. Very old motif; as Sasano remarks in his book "...represents the unstable political situation at the time".

Kokusai Tosogu Kai 5th International Convention & Exhibition, October 28-30, 2009 at NEZU Museum, Tokyo, Japan, on page 83 provides the following explanation of the triple diamond symbol: "The pine bark is the form of the Diamonds, "Bishi", mon, seen from Nara period, found on cloth stored in the Shoso In, and used primarily by the Takeda family. The form of Bishi mon [similar to ours] is called "Chu Kage Matsukawa Bishi", (Middle Shaded Pine Bark Diamond)."

A combination of hatchet (usually an axe) and a triple diamond (Matsukawabishi) alludes to the Nō play Hachi-no-ki (ref: Iron tsuba. The works of the exhibition "Kurogane no hana", The Japanese Sword Museum, 2014; AND Sasano: Japanese Sword Guard Masterpieces from the Sasano Collection. By Sasano Masayuki. Part One. Published in Japan in 1994.

Iron tsuba of round form with design of iris and snowflake in openwork (ko-sukashi or small cut-outs) outlined with brass wire. Three concentric rows of brass dots (ten-zōgan), with a brass circular line inside the innermost row of dots (missing on the back). Hitsu-ana is not outlined with brass wire, which let us suppose that it was cut out at a later date. Iron and brass. Ko-sukashi and ten-zōgan technique. Mid Muromachi period (1454-1513). Height: 74.0 mm, Width: 73.6 mm, Thickness: 3.0 mm.

NBTHK certification of 1968: "Kicho". Condition is relatively poor: rust, missing inlay, scratches.

While representation of the snowflake is rather standard, the meaning of the other cut-out design was initially less clear. Similar symbol was found at (1) "Kokusai Tosogu Kai, International Convention & Exhibition, September 24-25, 2005, The Frazier Historical Arms Museum, Louisville, Kentucky, USA"; on page 21 there is a photograph J-6 of a ko-tosho tsuba with "iris theme openwork"; (2) Japanese Swords and Tsuba from the Professor A. Z. Freeman and the Phyllis Sharpe Memorial collections. Sotheby's, London, Thursday 10 April 1997; page 11, lot 6 - a ko-katchushi tsuba of early Muromachi period fith "simple design of stylized iris". In both sources the symbol is explained as 'iris" (kakitsubata).