Itame katana, unsigned, Showa era, Edo binding

The head is hand-forged from Japanese tamahagane steel with high resistance to chipping and mechanical injury. 64.3 cm long shinogi zukuri type blade, selectively hardened. Regular, straight Suguha hamon. Clearly marked hada (cupping pattern) with predominantly masame - parallel layers and gentle waves (ayasugi hada). Sword blade in very good condition and polish, without hagire and kizu, with minor nicks. Chu-kissaki (tip) of medium length.
Shōwa era (1912-1989) katana, mumei blade unsigned. Modest yet elegant koshirae (binding) of the buke zukuri type. Classic, subdued, graphite-black color scheme with no unnecessary ornamentation or decoration. The binding is very well preserved, made partly with original elements from the Edo period (1603-1868): tsuba (sword garda) iron, from the Shōwa period, with natural patina and motif of large wood grains (o-itame), mokko gata shape. Seppa (separators) copper, blackened. Fuchi and kashira (handle fittings) antique, also iron, with a motif of slanted scratches. Classic habaki of patinated brass with decoration in the form of grasses in the rain (koshi-yujo). Old copper menuki (ornaments under the braid) with antique orange patina depict two fighting roosters. Handle (tsuka) wooden, covered with natural stingray leather (samegawa) in beige-gray. Braid (tsuka-ito) of Japanese silk ribbon in black (kuro). Katana joined by a single bamboo peg (mekugi). The sword can be completely disassembled into individual pieces for maintenance or replacement. Scabbard made of honoki (Japanese magnolia) wood lacquered in graphite-black semi-matte, striated. The surface of the saya (scabbard) with a fine texture imitating the porosity of stone (ishime). Finishes of the scabbard (koiguchi, kurigata, kojiri) made of black water buffalo horn. The whole thing is very well-fitted, with no looseness or cavities.
Blade length: 64.3 cm + habaki
Handle length: 23.3 cm
Motohab: 3.15 cm
Sakihaba: 2.17 cm
Motokasane: 7 mm
Sakikasane: 5 mm
The sword has a certificate from Polish appraiser Krzysztof Polak confirming the above data.