Ciaphas thanks.
The Proof (and prints) are titled "Target of Opportunity"
autographed by Lt. Col. Richard A. Hewitt 82nd FS CO.
It is marked 25/50 which means it is the 25th proof of 50.
The Artist: Marcus W. Stewart
I believe at purchase it was 125 to 150 dollars. (for the Proof)
quite reasonable imho.
A print would be somewhat cheaper.
BTW...the P47 in the picture is a depiction of a P47D25 (which is printed in small letters, bottom left of Proof)