Colombia 1921 SCADTA Definitive Series

Colombia · 1921 · Various

This definitive series features various early aircraft, highlighting the pioneering role of the SCADTA airline in Colombian aviation. The designs depict biplanes in flight over Colombian landscapes, symbolizing the dawn of commercial air travel in the country. These stamps were specifically issued for airmail service, a critical development for a nation with challenging mountainous terrain.

Issued by the private airline SCADTA (Sociedad Colombo-Alemana de Transportes Aéreos), these were among the world's first stamps dedicated exclusively to airmail, predating many official government issues.