Had one. Problem is the paper that you need to use it is not available anymore. It required a two-step process, using to different sheets of paper along with the original. The original was placed between the special white paper that the copy eventually appeared on and a pink sheet that basically looked like pink carbon paper. The "Sandwich" of the white sheet, the original, and the pink copy sheet were placed upside down on the top part of the machine that had a glass plate. After exposing it to light, the original was removed and then the "sandwich" of the pink sheet and the white sheet were inserted into the machine where heat would develop the copy.
Somewhere in my files, I have an instruction book for the machine; but, like I said, I'm almost positive the two-part copy paper that is needed to operate it is not available anymore.
Hope this helps.
Ron
Kenmore58