John Wayne Gacy aka the "Killer Clown" and "Pogo the Clown" was a Des Plaines, Illinois serial killer convicted of 33 murders and who was executed by the state of Illinois via lethal injection on May 10, 1994.
3 1/2" x 5" photograph of a skull painting originally done by Gacy which was taken by the person who received it from John. He then sent the photo to Gacy who wrote on the back before returning the photo to the original owner of the painting.
Gacy has written on the back and signed with his name in print, 10" x 14" Paul a bit unusure, but a popular painting. I hope you have fun with it. Best Wishes, J.W. Gacy.