Astrophilately
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Astrophilately is a branch of philately which deals with the collection of stamps and postmarked envelopes related to spaceflight. It is the intersection of space and postal history. Envelopes postmar
Soviet 1978 stamp commemorating Vladimir Kovalyonok and Aleksandr Ivanchenkov's new space-endurance record of 140 days onboard Salyut 6
One of the so-called "Sieger covers" that were taken to the Moon and back by the US astronauts flying the Apollo 15 mission
US stamp 1918 24c Curtiss Jenny C3
Cachet
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In philately, a cachet is a printed or stamped design or inscription, other than a cancellation or pre-printed postage, on an envelope, postcard, or postal card to commemorate a postal or philatelic e
Astrophilately
…cancelled at launch sites, tracking stations, Mission Control facilities, research laboratories, and recovery ships. Many, though not all, such items have cachets produced for the mission; others are recognizable only with specific knowledge of the postmark location and date corresponding to a launch. As with…
A cachet (on the left) commemorating George Washington Carver on a first day cover issued in the United States
George W. Linn's cachet (in the lower left corner) on Harding Memorial issue