punch mark
刻印 / punch-mark — Making
Driving a mark into the face of the metal; also the mark itself.
Paper money of the siege of Leiden (28 stuivers)1574
Wire Kopek (Cheshuika)Early 17th century
60 réis countermarked silver coinOriginal coin of Sebastian's reign, later countermark
Early Indian coinage took the form of silver ingots with multiple marks punched on them. The marks indicating "who guaranteed it" came first; designs and denominations were added later.