Skærv - Erik of Pommern

Erik of Pomerania inherited the Danish throne through his great-aunt Margaret I, who effectively governed in his name until her death in 1412 and almost certainly oversaw monetary policy during the early part of this coin's issue window. The skærv — Denmark's smallest denomination — was a fractional pfennig-type struck to facilitate petty commerce in a Scandinavian economy still heavily dependent on local market transactions rather than bullion exchange.

At 0.14 g, losses through clipping and wear were essentially total after even brief circulation, which explains why surviving examples at any quality are genuinely uncommon.