Air Force 1973 Signed Brochure Pamphlet. These are seven signatures. I remember getting this autographed as a child. The brochure is in very nice vintage condition. It has been stored in a climate controlled, smoke free environment. There are thumbtack holes from hanging on a bulletin board long ago. I can’t find a date on this, but I’m going with 1973 based on my memory and the comment in the Mission and History paragraphs: The United States Air Force Thunderbirds were activated in May 1953. In their 20-year history, the Thunderbirds have performed in 48 countries. This particular air show was in Jackson, MS at the state fairgrounds if my memory is correct. Please see all photos for more details.