Here is an unusual Item, a Bell & Howell Lacing Film. I wanted one of these ever since I was first told about them. Only 50ft long, and it's both optical and magnetic. For the complete novice, this film shows you how to lace up your manual projector; but before you can learn how to do it, you have to lace up the projector. Crazy or what?

Now that is a rare item, i have never seen that before.