Original Japanese WWII Inert Type 89 Knee Mortar 50mm Grenade Discharger Inert Round - Dated 1941 Antique Shotgun The 1839 date puts it

The 1839 date puts it in the correct timeslot for issue during both the Seminole Wars in Florida and the Mexican-American War

it was a straight blowback

You could hardly see the bricks

with some staining and light oxidation

but cannot guarantee it

Original Japanese WWII Inert Type 89 Knee Mortar 50mm Grenade Discharger Inert Round - Dated 1941 Antique Shotgun The 1839 date puts itOriginal Items: Only One Available. This is a genuine Japanese World War II 50mm Mortar, Type 89 grenade with a Type 88 instantaneous fuze. Features remnants of original paint with a yellow band on the body and a red band at the top. The Mortar round is inert and can never be used as a weapon or for its original intended purpose, therefore complies with BATF guidelines regarding inert ordnance. Unloaded or dummy grenades, artillery shell casings, and