A friend from Poland has just sent me a German 20mm X 138 inert flak round (yes it is completely empty) and i was hoping one of the ordnance experts could tell me the exact type.
It's got a lacquered steel case and the only markings i can see is the number 26 on the base (pretty corroded),
the bullet/projectile is marked v? a f g 44 with 53 44 below it,
the screw in alloy fuse is marked 2cm kpf.z.zerl. fg. dtf 260
Any help would be greatly appreciated.