Thin plate iron tsuba of round form with a military commander's fan (gunbai) design in openwork (sukashi); Ko-tosho school. Kamakura period (1185 – 1333), 13th to early 14th century (according to Nakamura Tessei). Dimensions: 91.2 x 89.5 mm, thickness: 1.5-2.5 mm. Provenance: Patrick Liebermann Collection. Reproduced in the exhibition catalogue Samurai. Guerriers et esthètes, BNU, Strasbourg, March 11 – July 13, 2022, №045, p.91 and in Patrick Liebermann, Tsuba. Itinéraires d'une collection, 2016, №72, p.111. Reference: a similar tsuba reproduced in LIB-3304.2024 (see below) and in this collection TSU-0332.2017 (provenance Sasano Masayuki).