Reverse Painting on Glass
A reverse painting is one that has been painted directly on the back of the glass, in reverse.  "Verre Eglomise" has roots as far back as the 3rd Century AD in Asia and around the world. I don't remember why I decided to try it but I entered and sold one in a show at Lewis and Clark College in Portland in 1985.  I use acrylic paint and finish the back with black and clear acrylic sealer.  The finished piece is either covered with paper or rests on a canvas backing and is wired for hanging. 

---