139-73.74.B Envelope and stamp First Launch Cover issued by U.S. Postal Service with First Mailgram Message sent via Satellite Western Union Mailgram Transmitted via Westar 1 Date September 1 1974
-Image from the SDASM Curatorial Collection. Please support the our Museum during these trying times by donating. For a limited time your donation will be matched dollar-for-dollar through the Museum’s Challenge Grant Recovery Fund: sandiegoairandspace.org/support/donate/donate