Costa Rica 1905 UPU Overprint on National Theatre 20 Centimos

Costa Rica · 1905 · 20 Centimos

This 20 Centimos red stamp depicts the National Theatre of Costa Rica, a prominent architectural landmark. It features a black overprint 'U.P.U. 1900' applied in 1905.

The overprint 'U.P.U. 1900' signifies the stamp's connection to the Universal Postal Union, likely issued to commemorate an anniversary or specific postal regulations related to international mail, using existing stock from the 1900 National Theatre series.