I've never really had a hankering for (trying to) collect the School Bulletins, even though I have some odd 'sample' copies.
However, as you just showed, I have had on my low-priority to-do list to at least get all the space-theme related covers. Wonderful illustrations!
Neither did I (as to collecting these) but as you are probably aware, these just kinda fell into my lap.
Thanks again, Jeff !!!
No, just thought you bought them.
These are the only space related overs they printed.
Thanks Jeff, it's renamed.
Note: While not being spaceflight related, I thought I'd add this cover to this discussion. It is the School Bulletin from March 1970 and is about the solar eclipse occurring that month. I thought it would be appropriate, especially with the "Great American Eclipse" due this August. The photo is courtesy of Abramo Russo.
Interesting, I saw the March 1970 eclipse in totality at Wallops Island, Virginia. Wallops is a NASA facility and they launched about three dozen sounding rockets during the eclipse to study its effects on the upper atmosphere, ionosphere, and magnetosphere. It was quite a show, but no comparison to the total eclipse itself.
Note: I just added this "Eclipse" cover to the listing.