3M 1800 BJ2 Overhead Projector Classroom Transparency Projector has new lamp

3M Overhead Projector 9100 Model 9000AJB - Transparent w/ BULBS - Tested WORKING

New 3M 1800 BJ2 Overhead Projector Classroom Transparency Projector

Vintage 3M 1700 Overhead Projector Home School Office Tested Works!

3M 2000 AG Overhead Portable Briefcase Projector - Foldable Compact Tested Works

3M 9050 Overhead Projector - Working, Tested - See Photos

3M 1800 Overhead Projector tested with Lamp WORKS Perfect!

VTG 3M 9050 Overhead Projector Tested and Working