Vintage 3M 1700 Overhead Projector 1707 Model 1700 AJF WORKING and TESTED

Vintage 3M Overhead Projector Model 120 READ

ELMO HP-L3550H Overhead Projector | Made in Japan | TESTED | Extra Bulbs

3M 2000 AG Overhead Projector Briefcase Portable Transparency Projector (tested)

3M 1700 Plus Overhead Projector Model 1700 New Open Box

3M Overhead Projector 1800 series

3M 9100 Overhead Transparency Projector Portable Dual Bulb 9000AJB

3M 9050 Overhead Projector Model 9000AJA (Bad Bulb)