Obock Camel Post Stamp (5 p) from 1893

Obock 5 P Camel Post Stamp, 1893

Obock Camel Post Stamp (5 p) from 1893

Colombian Republic Stamp (2-1/2 centavos) from 1865

Colombian Republic 2-1/2 Centavos Stamp, 1865

Colombian Republic Stamp (2-1/2 centavos) from 1865