Aikuchi tanto koshirae with jabara ito tsuka maki. All fittings other than shakudo menuki are made of horn. Urushi on saya looks a bit green on photos but in normal light it is black with grey. There is no tsunagi. Tsuka and saya are not a tight fit so they need blade/tsunagi to stick together.
Size:
Length: 39 cm
Tsuka: 10 cm
Saya: 29 cm
Nakago hole: 20 mm x 7 mm
Tsuka depth: 8 cm
Koiguchi hole: 26 mm x 11 mm
Saya depth: 25,5 cm
Saya sori: 7 mm