Hey Tom,

My experiment was triggered by ColdWarTendencies experiment 11 or 12 posts prior to this one, the pictures in his posts were taken through the 3 1/2 inch floppy film.  On my post all I did was slide the metal cover aside and took the picture through the slot.  I have no idea who came up with it or where to direct you to more info but its easy to try if you still have the floppies around.  Bright sunlight will help.

Mike