I have received a quite interesting envelope lately :-). It was all covered by old US stamps! :-). The oldest one is from 1947!
These stamps were lauched in:
- 1947 (15 cents, Staue of Liberty and New York Skyline);
- 1959 (7 cents, Hawaii Statehood);
- 1959 (7 cents, Alaska Statehood);
- 1969 (6 cents, John Wesley Powell);
- 1969 (6 cents, Hope for Crippled);
- 1971 (6 cents, Douglas MacArthur);
- 1973 (8 cents, Rise of the Spirit of Independence);
- 1981 (20 cents, Beavertail Cactus).
Distance: 7 382 km