John Wayne Gacy 16" x 20" Patches the Clown oil painting done while Gacy was awaiting execution in Menard, Illinois.
The paintings is hand signed twice. Hand signed on the front, and hand signed again in script on the back.
Hand signed on the front, J.W. Gacy.
Hand signed on the back, John W. Gacy titled 2134-91 Patches the Clown.
The original owner had Gacy's original mailing label from the plastic used to pack this painting to the back of the painting. 
Guaranteed authentic.