Original Czech Pre-WWII Yugoslavian Contract ZB-30J German MG30(t) Display Machine Gun Serial Б563 with Magazine Category_MG 42 Mounts and is marked in multiple

and is marked in multiple other locations

Aircraft and ground crew of Boeing B-17F-25-BO Fortress "Hell's Angels"  of the 358th Bomb Squadron

and do not properly mount to the liner

The M-1942 Pattern helmet is a further simplification of the M-1935/M-1940 Pattern Stahlhelm

The iron lock is plain but has a military inspector mark visible close to the cock

Original Czech Pre-WWII Yugoslavian Contract ZB-30J German MG30(t) Display Machine Gun Serial Б563 with Magazine Category_MG 42 Mounts and is marked in multipleOriginal Item: Only One Available. The ZB30 and ZB 30J were the later versions of the famous Czechoslovakian machine gun, the ZB 26. However, the ZB30 had some design differences, making it similar to the later ZGB 33, which was an early prototype of the Bren gun. Like the ZB 26, the Wehrmacht adopted the ZB 30 after the occupation of Czechoslovakia, renaming it the MG30(t); it was used in the same role as the MG34, as a light machine gun. In the