Peru 1951 UPU Overprint on Coal Hopper and Dock

Peru · 1951 · 10 Soles

The stamp features an industrial scene of a coal hopper loading coal onto a ship at a dock. It is overprinted in red with 'U.P.U. 1874-1949'.

This stamp, originally unissued, was overprinted to commemorate the 75th anniversary of the Universal Postal Union (UPU). It highlights Peru's participation in international postal cooperation.