This chapter is a continued part of Chapter 13 Tanto Middle Kamakura Period. Please read Chapter 13 before you read this section. 13|Tanto ( 短刀) Middle Kamakura Period
As Chapter 13 described, during middle Kamakura period, the shape of Tanto is called Takenoko zori . That means the tip of Tanto curves inward a little. The drawing on Chapter 13 is a little exaggerated to show the curve. Refer 13|Tanto ( 短刀) Middle Kamakura Period. But the real Tanto is not so obvious. Maybe a few millimeters. Usually, the length of the Tanto is approximately 12 inches or less. 10 inch Tanto is called Jyosun (定寸 ), longer than that is called Sun-nobi (寸延び ), and less than that is called Sun-zumari (寸詰り )
The above photo is Tanto by Shintogo Kunimitsu (新藤五国光). This style is called Kanmuri Otoshi. That means the steel of Mune side (opposite side of cutting edge) is shaved off. The length is approximately 10 inches. Wood grain surface, Nie on Ji (refer to the name of the parts 4 |Names of Parts ). Very finely forged. Hamon is medium Suguha (straight). Boshi is Ko-maru (small round). Because of the Kanmuri-Otoshi style, it may not be easy to see the Takenoko-zori, the Mune side bend inward very slightly. Among Tanto producer, Shintogo Kunimitsu is considered the top Tanto Maker.
Above photo is the same Shintogo Kunimitsu with Saya. Saya is a scabbard. The top white handle part is made with Sharkskin. Both photos are from Sano Museum Catalog. Permission granted.