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

3M 2000 AG Overhead Portable Briefcase Projector - Foldable Compact Extra Bulb

APOLLO Portable overhead projector

3M 2770 Overhead Projector – Fully Working – Good Vintage Condition

3M 2000 AG Overhead Projector - Briefcase Portable - Transparency Projector

3M 9100 Overhead Transparency Projector Portable Dual Bulb 9000AJB

3M 2770 Overhead Projector Tested

3m 9100 overhead projector