



I think that the USPS would have delivered it anyway and probably could have gotten away with an enclosure. It just had excess postage.
I wonder when the first stamp or postal stationery to picture a jetliner was issued?
The first jetliner I saw (and flew on) was the Boeing 720 that took me back to the U.S. after my two-year tour of duty in Japan in 1965. My flight to Japan two years earlier was on a MATS (Military Air Transport Service) propeller plane, a beautiful four-engine Constellation — 26 hours in the air from Travis Air Force base near San Francisco to Tachikawa AFB near Tokyo.
Here’s the “Connie” at Wake Island, where we landed for breakfast and fuel after flying all night from Hickham Field in Hawaii:

Bob
jets were introduced in the early 40s; the DeHavilland comet first flew in 49. Now, to find the first commercial jet on a stamp/PSE
Almost right, David.
From Wikipedia:
"The first jet airplane, the Heinkel He 178, was flown on August 27, 1939. This aircraft was powered by a turbojet engine designed by Hans von Ohain".
The first stamp to picture a jetliner was an American stamp. This is from ChatGPT, which also supplied an image:


Bob
I have an 11c Aerogramme, clearly meant for international use.
was domestic use (following all the rules: no enclosures, only writing on the interior of the sheet, overpaid) allowed? If not, was it illegal to mail domestically?
Domestic air mail in 65 was 8c.
here's the front of the cover, if that helps

re: 11c Aerogramme Letter sheet
I think that the USPS would have delivered it anyway and probably could have gotten away with an enclosure. It just had excess postage.

re: 11c Aerogramme Letter sheet
I wonder when the first stamp or postal stationery to picture a jetliner was issued?
The first jetliner I saw (and flew on) was the Boeing 720 that took me back to the U.S. after my two-year tour of duty in Japan in 1965. My flight to Japan two years earlier was on a MATS (Military Air Transport Service) propeller plane, a beautiful four-engine Constellation — 26 hours in the air from Travis Air Force base near San Francisco to Tachikawa AFB near Tokyo.
Here’s the “Connie” at Wake Island, where we landed for breakfast and fuel after flying all night from Hickham Field in Hawaii:

Bob
re: 11c Aerogramme Letter sheet
jets were introduced in the early 40s; the DeHavilland comet first flew in 49. Now, to find the first commercial jet on a stamp/PSE

re: 11c Aerogramme Letter sheet
Almost right, David.
From Wikipedia:
"The first jet airplane, the Heinkel He 178, was flown on August 27, 1939. This aircraft was powered by a turbojet engine designed by Hans von Ohain".
The first stamp to picture a jetliner was an American stamp. This is from ChatGPT, which also supplied an image:


Bob