Model 183 Military Lensatic Compass

Graduated Azimuth (0-360°) in 5° units, the outer portion of the dial is graduated in mils. Sturdy aluminum case with metal hinges, painted olive green. Waterproof and shockproof. Built-in magnifying lens and 1:50,000 map scale die-cast on the side. Damped by an inner copper shell that allows for fast settling of needle. Operating temperature: -50° to +160°F. Includes finger loop for holding compass steady, nylon lanyard and nylon carrying case with “Alice” belt clip. Contains tritium filled vials that provide a bright green fluorescence allowing the compass to be read at night without an external light source.