Amazon.com : 3M 1800 Series Projector'. There are 7 projectors in the 1800 series (1800, 1810, 1825, 1830, 1865, 1880, 1895M) : Overhead Projectors : Office Products
3M 2770 Overhead Projector - Imagine41
3M 1720 Overhead Projector 78-9236-6850-9 B&H Photo Video