U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?

U.S. Pat. 3660907 Model LS1 Divers Compass. very good condition, Military issued ?