Original Japanese WWII Type 89 Knee Mortar 50mm Grenade Discharger Inert Round with Top Plug British Machine Guns The F4B-1 was built using

The F4B-1 was built using traditional construction techniques of the day

The belt comes together with matching tasseled body sash in the same gilt and red combination

which shows markings on the rear

which they promptly shot down

and "TOWER“ across the tail

Original Japanese WWII Type 89 Knee Mortar 50mm Grenade Discharger Inert Round with Top Plug British Machine Guns The F4B-1 was built usingOriginal Items: Only One Available. This is a genuine Japanese World War II 50mm Mortar, Type 89 grenade, with an original bakelite Top Plug. For safety reasons, the fuze was not installed until the round was ready for use, so a plug was needed to protect the interior. The round features original paint with a yellow band on 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,