50 Soles

Banco La Providencia was one of several Lima-based private banks authorized to issue notes under Peru's 1873 banking law, which allowed commercial institutions to circulate paper money backed by metallic reserves held on deposit. The arrangement collapsed within a decade — the War of the Pacific (1879–1884) devastated Peru's finances, the reserve system broke down entirely, and most private bank notes became worthless. La Providencia itself did not survive the crisis.

That trajectory makes high-denomination survivors from 1877 genuinely uncommon. Notes were circulating just two years before the war began.