Stamps Year 1973

Neusiedlersee -Neusiedlersee
Nelida Fernandez Besada
Reiteregg
Nelida Fernandez Besada
Falkenstein Castle
Nelida Fernandez Besada
Undauer Hutte Ratikon
Nelida Fernandez Besada
Aggstein Castle
Nelida Fernandez Besada
Almsee
Nelida Fernandez Besada
Banded coral shrimp
Nelida Fernandez Besada
Star sapphire -Star sapphire
Nelida Fernandez Besada
1972 Summer Olympics, Munich
Jose Roberto Lara
Nicholas Copernicus (1473-1543, Polish astronomer) and his heliocentric system.
Nemesio Ramirez Lemos