1 Peso

The Tesoro del Departamento de Antioquia issued regional treasury notes during the Thousand Days War (1899–1902), one of the most destructive civil conflicts in Colombian history. The national government's fiscal collapse during that period pushed individual departments to issue their own paper currency to meet local payroll and procurement obligations. Antioquia, with its relatively strong regional economy anchored in mining and coffee, was better positioned than most to back such issues — though confidence in departmental paper was never guaranteed.

Printed locally in Medellín rather than abroad, production quality reflects the constraints of wartime.