50 Centavos Banco de Medellin

Banco de Medellín was one of several regional Colombian banks that flourished under the 1880 banking law permitting private note issue — a privilege that lasted only until the Banco de la República's monopoly was consolidated in the early 1920s. This 50 Centavos note predates the severe monetary disruption of the Thousand Days War (1899–1902), which wrecked most of the private banking system and rendered enormous quantities of regional banknotes worthless almost overnight.

Bradbury Wilkinson produced the plates in London, a common arrangement for South American issuers seeking security printing beyond the reach of local counterfeiters. Surviving examples from Medellín's smaller denominations are considerably scarcer than the higher values — fractional notes suffered harder circulation and were rarely preserved.