Iron tsuba of round form inlaid with brass, copper, and shakudō wire fastened to the surface with metal staples (mukade-zōgan); Scalloped brass inlay around the rim. Early Edo, 17th century. Height: 84.8 mm; Width 84.8 mm; Thickness at seppa-dai: 3.7 mm. Weight 161.6 g. Design is thought to resemble a centipede. "Centipede-like inlay (mukade zogan) of alternating iron and brass staples produce an appearance that was particularly favored by Takeda Shingen (1521-1573), one of the most powerful warlords of his time. The centipede is sacred to Bishamon (God of War) and especially propitious for a warrior. Shingen type, 16^th century.” [The Peabody Museum collection of Japanese sword guards with selected pieces of sword furniture, by John D. Hamilton. Photographs by Mark Sexton. Salem, MA, 1975.] See also: http://varshavskycollection.com/shingen-tsuba/

Ko-kinko ymagane cast tsuba of mokko form (kirikomi-mokkō-gata) with chiseled diaper pattern of double head waves on both sides and a rabbit cast and carved with its eye inlaid in yellow metal (gold or brass) on the face. Fukurin which holds together the sandwiched layers of metal (sanmai) is about 2.4 mm wide. A look-a-like tsub of oval form instead of mokko-gata  is illustrated at Robert E. Haynes's Catalog #3,1982 on page 11, lot 15: "Rare design in style of Sanmai (three layers) / Wasei work. With yamagane core and heavy rim cover. The web plates are carved with double head Goto style waves and the face has a fox. The web plates were riveted at the seppadai.  See Lot 4, page 8. Ca. 1350. Ht. 6.6 cm, th. 3 mm" [underscore mine]. Quality of photo is so poor that I decided not to provide it here. Muromachi (if we follow Robert) or Momoyama period. The Momoyama attribution is mostly based on a fact that "waves and rabbit" motif became most popular in Momoyama times. Size: 68.5 x 59.8 x 4.0 mm. NBTHK Certificate № 423120. This tsuba is listed at Yakiba website with the following passage: "Attributions as well as dating of this type of tsuba has been the subject debate over the years. There are those who believe these type of tsuba to be ko-Mino (early Mino School) tsuba, others believe them to be tachi-kanaguchi tsuba. Still others insist they are simply ko-kinko (early soft metal) tsuba. This tsuba was authenticated and determined to be "Ko-Kinko" by the NBTHK". Oval form tsuba with the same design can be found in this collection - TSU-0323.

Relatively thick iron tsuba of rounded square form with slightly elevated rim decorated in carving (sukidashi-bori) and yellow brass (shinchū) inlay (suemon-zōgan) with legendary creatures (humans with cow heads) in a pine tree forrest on the face,  and a horned man with a stick hunting a rabbit in the woods on the reverse.  Large hitsu-ana possibly cut off later on. In the beginning of the 20th century such tsuba were usually attributed to Fushimi-Kaga school. This one may be attributed to either Ōnin or to Heianjō. The latter seems most plosible because of the thick web and dull patina. The technique may also be called "shinchū-zōgan". Momoyama or early Edo period. Unsigned. Dimensions: 72.3 x 68.4 x 4.1 mm

Small iron tsuba for a dagger (tantō), of quatrefoil form (mokkō-gata), with raised rim (mimi), decorated with flat brass inlay (hira-zōgan) to form an abstract design alluding to the mushroom of immortality (reishi). Opening (hitsu-ana) to the left of nakaga-ana probably cut later and fitted with shakudo sekigane. Maker's signature on seppa-dai: Koike Naomasa (小池 直正).

Momoyama period: End of the 16th - beginning of the 17th century. Dimensions: Height 53.7 mm; Width: 45.5 mm; Thickness at centre: 3.5 mm; at rim: 4.9 mm. Other examples of signed Koike Naomasa work in this collection: TSU-0346. Reference: The closest example in literature is in Compton Collection (II): №11 with the description: “A Koike School tsuba, Edo period (circa 1625), signed Koike Yoshiro. Sheet-brass flush inlay of cloud forms and wire inlay creating the same shape. Koike Yoshiro Naomasa worked from the Keicho to the Genna periods (1596-1623). He arrived in Kyoto from Kaga.” [Japanese Swords and Sword Fittings from the Collection of Dr. Walter Ames Compton (Part II) / Sebastian Izzard, Yoshinori Munemura. — Christie's, New York, October 22, 1992]. See: Yoshirō tsuba.    

Mokkō form iron tsuba carved in relief and inlaid with soft metals (copper, gold, silver) with the design of a cormorant fisherman on the face and a boat on the reverse. Unsigned. Dimensions: 77 mm x 69 mm x 3.0 mm (at seppa-dai) Edo period: 18th or 19th century. "Since Nara period, Japanese fishermen in small boats have used cormorants (u) to catch river fish at night, binding the necks of the birds so that the fish are not swallowed. [...] The bird and the work it performs are symbols of selfless devotion to one's master and keen eyesight." - from Merrily Baird. Symbols of Japan. Thematic motifs in art and design. Rizzoli international publications, Inc., 2001; p. 104. See also in this collection TSU-0212 and TSU-0241.