Blade:

Period: Shinto 

Mei: Mumei.

Sugata: Sankaku yari.

Overall length: 15.04 inches (382.00 mm)

Nagasa: 7.40 inches (188.00 mm) long. Widest point of blade 0.76 inches (17.80 mm).

Nakago: Ubu, 7.63 inches (194.00 mm), one mekugi-ana, yasurime are katte-agari.

Hamon: Unable to tell.

Hada: Unable to tell.

Blade condition: Out of polish. Some surface muck and spider rust but nothing that won't polish out. A small chip is missing from the tip. See photos.

Mounts:

In Shirasaya. See pictures.

Comments:

A nice Shinto sankaku yari. These appear to be getting less common these days.