Apollo Horizon Overhead Projector Model 15000 Series Tested

3M 1800 AJB Overhead Projector Vintage Transparency 3000 Lumen School Office

3M 2000 Overhead Projector with Manuals and Power Cord vintage working

3M 9100 2-Bulb Folding Overhead Transparency Projector - Works Great! Nice!

3M 9100 Overhead Transparency Projector Portable Dual Bulb 9000AJB

Vintage 3M 1700 Overhead Projector Model 1700BJA With Lamps Working

3M Overhead Projector 9100 Model Untested *No Bulbs*

Vintage 3M 1700 Overhead Projector Model 1700BJA Home School Office W/ Paper