

Why was a 2 stamp set and a souvenir sheet in 1963 not issued for the Red Cross anniversary by Royalist Yemen? My information is unclear what changes were made if any resulting in the issue of the stamps years later.
What problem affected a set of Sao Tome and Principe stamps in the 1970s but did not keep the stamps from being distributed?
First correct response received at or before noon eastern US time, July 19, 2021, will be declared the winner. If no correct response received, the first response will win. My decision as to the winner will be final.
Good luck to all who choose to participate.
Will


