50 Soles de Oro Overprinted on P#50

P#58 is a transitional note — the underlying P#50 plate design was overprinted to convert existing stock into a new denomination or authorization series rather than commissioning an entirely new printing run. This was a cost-saving measure the Banco Central de Reserva employed during the mid-1930s, a period when Peru was still adjusting to the monetary restructuring that followed the Depression-era collapse of the Sol's external peg.

The American Bank Note Company had a long relationship with Lima through this period, supplying engraved intaglio work of consistently high quality. The overprint itself, however, is the detail worth examining — its registration and ink consistency vary enough between surviving examples to suggest the application was done in smaller batches rather than as a single unified run.