I have been shown a 5.8 x 21mm Chinese pistol cartridge with the headstamp 74 08. The case is copper washed/plated steel, the bullet is magnetic, the berdan primer pocket is empty. The case has a short neck crack and the bullet appears to be glued into the case. The case had large blobs of soft solder (tin/lead) which I have been able to remove by heating with a blowtorch and wiping quickly with a coarse cotton rag (yes I probed through the flash holes first to check that the case was empty!).
Is this a known headstamp on this round?