I bought a 16 1/2" x 24 1/2" picture of The Head of Christ at an auction in Anderson, IN the other day. It says "Warner Sallman 1940" on the left front and "copyright 1941 Kriebel and Bates Litho in U.S.A." on the front right side. When the picture is turned over the image is on that side in reverse, Jesus facing the other way and the writing is backward. It is like the picture goes all the way through the paper. I have pictures of this Litho that I can email to you to show what I am talking about. does anyone have any information this double sided picture?