Sao Tome og Principe
Viser nu Sao Tome og Principe - Post frimærker (1869 - 2021) - 2 frimærker.
1981
World Chess Championship, Meran
28. november VM: Ingen Perforeringer: 14
1981
Winner of World Chess Championship, Meran - Overprinted
10. december VM: Ingen Perforeringer: Printed