刀
銘　備州長舩住経家
　　 永享九年丁巳八月日
　　（良業物）
Katana
Bishu Osafune ju Tsuneie
Eikyo 9 nen Hinoto-mi 8 gatsubi
(Yoki-wazamono)

Bizen province, Eikyo era (early Muromachi period), 580 years ago
Ha-cho (Edge length); 63.8cm
Sori (curvature); approx.1.4cm
Moto-haba (width at Ha-machi); approx.2.85cm
Saki-haba (width at Kissaki); approx.1.85cm
Kasane (thickness); approx.0.61cm

Gold and silver foiled double habaki
It has a wooden case (Shirasaya)

Shu Urushi-nuri Kawa-zutsumi saya, Uchigatana koshirae
Whole length; approx.93cm
Hilt length; approx.21.2cm

Tokubetsu-Hozon certificate with NBTHK