- Springfield, Ohio, United States
- US $95.00
- Jan 29th
Rare Right Angle Incandescent Projection Display This is an extremely rare right angle projection display, 6.3 volt lamps, like new condition, tested. A projection display functions like a miniature slide projector, only the "slides" are numbers, each with its own separate lamp for electrical control. I have never seen a projection display like this before, this device bends the projection beam 90 degrees and displays on the top edge instead of the front.