COSTA RICA. Banco Central de Costa Rica. 50 Colones, ND (1971). P-NL. Composite Essay.
A trial design produced by the United States Banknote Corporation for the Banco Central de Costa Rica that shows with the Amarilla house at left and an otherwise highly basic design. Shown with 8-20-71 date at upper left and "BN 42139" at upper right. Mounting remnants at the back. About Uncirculated.