May be these pictures could be interesting for 7,62x39 collectors
Bulgarian Dummies where made of standard case without primer, FMJ steel core bullets and spring inside the case. Overal surface of the cartridge was tinned. Early models has two holes in the case and 3 dot crimps on the case neck. About 1970-th holes and crimps was abandoned.
Hungarian Dummies has a similar design, but bullet in the case neck was fixed with hard cannelure and primer pocket was loaded with empty primer cup
Interesting, that in 1961 Hungarian Dummies was packed in long cardboard boxes, the same dimentiones as early Soviet boxes of 1950th. At least in 1960, USSR start to use “economic” small size boxes. Bulgarian box with Dummies (headstamp 10 77) also has small size.
Picture with boxes:
Small size Bulgarian box with Dummies 1977 dated
Big Hungarian box with Dummies 1961 dated
Big USSR box with BZ (API) rounds 1951 dated
Small USSR box with Ball rounds 1960 dated