Iron tsuba decorated with sparrows and bamboo inlaid and chiseled in yellow brass, with snow lying on bamboo leaves inlaid in silver-ish shibuichi. Copper sekigane. The kogai-hitsu-ana probably cut out at a later date. Heianjō school. Unsigned. Height: 86.0 mm, Width: 85.4 mm, Thickness at seppa-dai: 2.9 mm. Momoyama or early Edo period, first half of the 17th century. Merrily Baird, Symbols..., page 118: "The association of the sparrow (suzume) with both bamboo and rice heads is an old one found in Japanese poetry, paining, and design."

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).

Shakudō tsuba of the slightly vertically elongated round form (nagamaru-gata) decorated by gold in flat inlay (hira-zōgan) with three insects (cricket, locust, and praying mantis), grass and dewdrops motif. Kogai hitsu-ana is plugged with gilded soft metal. Height: 70.2 mm; width: 66.4 mm x Thickness at seppa-dai: 4.5 mm. Edo period (from ca. 1700 to ca. 1850) Unsigned. Attributed to Kaga School or Murakami School. Almost identical tsuba (no dewdrops, though) is illustrated and described at page 60 of Kokusai Tosogu Kai. 7th International Convention & Exhibition, November 1st, 2011 at Tokyo National Museum, page 60. It is attributed to the Kaga School, Mid Edo period (Late 17th - early 18th century). Dimensions: 70.5 x 66 x 4.5 mm. "The rich black shakudo plate has been slightly lowered (dished out) and then polished. Gold insects crawl amongst grasses, depicted by Kaga style hirazogan (flat inlay). One tendril of the mantis overlaps onto seppa-dai. The mantis boldly looks out from the tsuba in a curious way. This style of Kaga tsuba was popular during the Genroku era (1688-1703)."   Another source is Japanese Sword Fittings. A descriptive catalogue of the Collection of G.H. Naunton, Esq., completed and illustrated by Henri L. Joly, - 1912:

Kanazawa in Kaga was a centre of fine metal work during the whole of the Tokugawa period. At first the inlayers of Fushimi following the Daimyo Maeda went to Kanazawa, then some of the Gotō masters proceeded from Kyoto for short periods to work for the Daimyo, so that their influence was strongly impressed upon Kaga work..." A somewhat look-a-like tsuba is illustrated at plate XXVIII, Kaga Inlay, №653 with the following description at page 52: "Shakudō, inlaid with five insects in gold: crickets, praying mantis, grasshopper, in the style of Takagawara Ujitsugu.

According to M. Sesko, Ujitsugu was a master from Katsuki and Kaneko School in Kaga, son of Ujihira. Ujihira's father Ujiyoshi died in 1802. This brings us to the mid-19th century, instead of mid-18th or earlier. On the other hand, a very much look alike specimen at MFA collection (ACCESSION NUMBER 17.1061) has the with the following description: Edo period. Late 18th–early 19th century. Murakami School. Main material: shakudo; other metals: gold; decorative technique: iroe hirazogan. A detailed account of Murakami school can be found at The Japanese toso-kinko Schools.// Lulu Inc., 2012 by Markus Sesko, on pages 235-239. All-in-all, it's either Kaga School or Murakami School, either ca. 1700 or ca. 1850. Quite a range! SOLD

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".  

Iron tsuba with design of bamboo and sparrow (take-ni-suzume) in openwork (sukashi). Rounded rim. Copper sekigane. Akasaka school. Unsigned. Attributed to second generation Tadamasa Shōzaemon (died in in the fifth year of Enppo, 1677). Early Edo period: 17th century (Kan-ei / Kanbun era). Height: 79.0 mm. Width: 77.5 mm. Rim thickness: 5.5 mm. Center thickness: 6.6 mm. Provenance: Sasano Masayuki Collection, № 222: "It is believed that sparrows nest in a bamboo grove". According to Merrily Baird [Merrily Baird. Symbols of Japan. Thematic motifs in art and design. Rizzoli international publications, Inc., 2001], "a bamboo grove is said to be emblematic of security as the bamboo is resilient even in the face of high winds and heavy rains. [...]  The association of the sparrow (suzume) with bamboo is an old one found in Japanese poetry, paining, and design. The bird is said to be obsessed with its honor, especially the repaying of debts".  

Iron tsuba of oval form with design of cherry blossoms in positive and negative silhouette openwork (ji-sukashi and in-sukashi). Details chiseled in kebori technique. Rounded rim. Copper sekigane. Higo school, Hayashi sub-school. Unsigned. Attributed to  third generation Tōhachi (1723-1791). Edo period, 18th century (Hōreki / Meiwa era: 1751-1772). Height: 78.7 mm. Width: 72.2 mm. Rim thickness: 5.2 mm. Center thickness: 5.2 mm. Provenance: Sasano Masayuki Collection, № 289: "Hayashi. Third generation Tohachi (died in in the third year of Kansei, 1791 at the age of sixty-nine). Early 18th century (Hohreki / Meiwa era). "