Length of cutting edge39.4cm Curvature0.9cm Width of base32.0mm Thickness of base7.1mm
Kitae(forging pattern): Kitae is combination of Ko-itame(fine wood grain) and Mokume-hada (large wood grain) marks with fine and uniform Ji-nie hard metal granules over the surface of the blade. Fine chikei small nie lines works over the surface creating utsuri reflection. There is loosen forging mark on the base under the habaki.
Hamon(tempering pattern): Hamon starts with short straight tempering outline and choji clove outlines, nioi-based, rich in nie and clove feet works toward cutting edge frequently. Thick nie-lines(sunagashi) works in the interior of temper.
Nakago(tang): nakago is ubu(unaltered) with o-sujikai yasurime file marks, one mekugi-ana, Ha-agari-kurijiri heel, signed with a thick chisel on one side Awataguchi Fujiwara Tadatsuna.
Boshi(tip): Bosi is straight temper with small circle turn back.
Awataguchi Fujiwara Tadatsuna, first generation, a father of Asai Mandayu-the second generation Tadatsuna-was born in Himeji in Harima province and had moved to Kyoto. In his later period he and his son (Asai mandayu) had moved to Osaka. He had built up a solid reputation with his son, one of the best sword smiths in the early Edo period in Osaka. This is a quite rare hira-zukuri wakizashi of Tadatsuna. The jigane is quite impressive with thick and whitish boiling out precise nie granules. Chikei (small nie lines) stir lively. Tempering pattern is beautiful clove out line that is activated with frequent long Nioi-based ashi feet and sunagashi nie-lines works in the interior of temper. The entire temper is filled with Ko-nie and Nioi activity, impressively snow-white, bright and vivid. This is probably one of the best works of Hirazukuri Wakizashi of first gneration Tadatsuna.
Gold foiled double habaki collar, Shira-Saya plain wood mounting.
