Cammenga Phosphorescent Lensatic Compas 273 1 4" x 2 1 4" x 1 1 4" closed. Olive drab powder coated aluminum frame. Essentially the same model supplied to the U. S. Military except this version employs a phosphorescent paint for lightless visibility instead of self luminous Tritium. Features shockproof, damage resistant design. Waterproof to considerable depths. Sandproof for extra durability. Accuracy + 40 mils. Performs flawlessly in temperatures ranging from 50 F to 150 F. Uncompromised by