John Wayne Gacy
16 1/2" x 26 3/4" hand drawn map of the United States which Gacy had hanging in his cell during his time on death row in Menard, Illinois. He used this map to track where he received his mail from.
He has drawn a key noting how much mail he has received from each of the 50 states. Hand signed twice on the front, John Wayne Gacy and J Gacy.