This is fourth in mulit-volume series covering United States Navy patches from World War II to the present-each volume contains over 1000 patches in full color. This new volume covers: Activities, Bases, Centers, Commands, Communications, Cruises, Depots, Division, Facilities, Fields, Fleets, Flotillas, Forces, Groups, Medical, Missiles, Schools, Shipyards, Squadrons, Stations, Teams, Units, and Miscellaneous units. (See page 40 for previous volumes).