1 Peso

Banco del Chaco was one of several provincial institutions that briefly held note-issuing authority in Argentina during the early 1880s, before the Ley de Bancos Garantidos of 1887 restructured provincial banking and the Banco de la Nación Argentina ultimately consolidated currency issuance in 1891. Whether Banco del Chaco ever achieved meaningful circulation outside the territory is doubtful — the Chaco region in 1884 was still largely frontier, with a sparse population and an economy built on timber extraction and quebracho bark.

PS prefix in the Pick system signals this is catalogued as a private or semi-official provincial issue. Surviving examples are rare enough that condition history is poorly documented in the literature.