Special Features:

Periscope consists of the following dim.; base, 7.750 ins lg, 4.560ins w; base to top, 3.940 ins lg, 6.800 ins w; assembly is made up from down parts as listed on drawing 19207, 12285082

Properties:

A rectangular or cylindrical periscope, usually positioned in a holder, or mount within an armored vehicle. It is used to observe terrain, near and distant targets, and the like. It may also be linked to gun-training mechanisms for integration of movement for fire control purposes.