I bought a chinese toy made with 5.8 mm cases and dummy rounds yestarday. I dismantled it and found these headstamps:
61 08
61 09
71 98
71 00
71 04
and the unknown one with rounded rim and a “I” at 3 and 9 o’clock. Could someone ID this headstamp?
PS: cases from 61 factory are copper washed steel, the ones from 71 factory were laquered ( I didn’t remove the laquer, they were as you can see in the picture, bare steel with laquered neck/shoulder.