1 Peso Buelna / Carrasco - Countermarked

Sinaloa's revolutionary coinage of 1915 occupies a strange corner of Mexican numismatics. General Rafael Buelna controlled the state under Carranza's Constitutionalist faction, and the countermarked pesos issued under his authority were a pragmatic response to the near-total collapse of public confidence in paper money — populations across the northwest would only accept silver. The countermark authenticated existing coin stock rather than striking fresh planchets, which explains the dramatic weight range: the host coins varied wildly in origin and condition before being pressed into Constitutionalist service.