July 1, 2022 was the 65th anniversary of the beginning of the IGY on that date in 1957. This was noted in a nice article by Lauren Lipuma for the National Science Foundation website, wherein she mentions some of the major accomplishments of the IGY. Plus, she included some images of IGY stamps!
I tried to create my own 65th anniversary philatelic cover, but it didn't work out. I wanted to create and send a cover addressed to myself, with sufficient postage including the 1958 3¢ U.S. IGY stamp (Scott 1107) and another IGY-themed stamp, and a cachet I designed myself to mark the event. Then my plan was to get the cover canceled and postmarked in Adamstown, PA (Adam's town), just 45 minutes from Lancaster, since the image on the IGY stamp includes Michelangelo's The Creation of Adam. Unfortunately, I waited until the last minute and could not find a printer that I could do this on.
The design looked like this, without the stamps:
For the postage I would have added one of the 2021 Forever solar activity stamps to the 1958 IGY stamp itself:
I will be trying to make such a cover for another IGY anniversary. Any suggestions?