20mm Round Assembled Shell case, round, (fuse removed) |
20mm Round Disassembled Shell case, round, fuse |
Rearview of the 20mm shell case, '20' is embossed into the rear |
20mm Long Barrel Cannon from crashed A6M3 20mm round (bent) in breech |
20mm shell case comparison 20mm short barrel shell case (held) 20mm long barrel shell (in breech) |