The 5.8 x 21mm Chinese Pistol Revisited

Until recently, the only reported headstamp I have seen for this cartridge has been that found on the keychain rounds that many of us have in our collections, “74 03”.

Recently, however, I acquired a fired case of this caliber, made of copper-washed steel (CWS) and with brass primer, headstamped “71 06”.

Does anyone know of any other headstamps?