20 Pesos Moneda Boliviana

The Banco de Londres y Río de la Plata was a British-founded institution operating across Argentina and Uruguay from 1862, functioning more as a commercial trade bank than a central authority — its notes competed in a fragmented provincial currency environment where Rosario-branch issues circulated alongside those from Buenos Aires and other regional offices, each technically redeemable only at their issuing branch.

The American Bank Note Company produced this in New York. The denomination reads in *pesos moneda boliviana*, a unit then common in the Cuyo and northern Argentine interior due to heavy cross-border silver trade with Bolivia — its appearance on a British bank's Rosario branch note reflects exactly how tangled currency conventions were in the Río de la Plata region before Argentina unified its monetary system in the 1880s.