$100,000 Reward for Missing ‘Jennies’ - In 1955, four rare Inverted Jennies stamps were stolen. In the nearly 60 years since that theft, two of the stamps have been recovered, but the other two remain lost. Now, a prominent stamp dealer is offering a $100,000 reward to try to help close the case.
◇ Bulgaria 1973
First Aeroplane Flight in Europe. An original signed photograph of Jacob Christian Hansen Ellehammer (1871-1946), recording the flight of his semi-biplane on Lindholm Island, Denmark.
◇U. K. 1980
Timbre : 1970 ABBAYE DE CHANCELADE (DORDOGNE) | WikiTimbres
The original wright brothers aeroplane the world's first power-driven, heavier-than-air machine in which man made free, controlled, and sustained flight. Description from 2015haircolorideas.com. I searched for this on bing.com/images