Charles Manson 3 1/2" x 5 1/2" prison stamped postcard postmarked January 10, 2001 and hand signed on both sides. Manson has signed the front, C Manson with his complete address and the recipient's all written in his handwriting. 
The back is an incredible piece of full color Manson artwork hand signed in the corner, Charles Manson.

Charles Manson MAC Postcard Artwork Signed Twice