This image is a derivative work of the following images: File:US_Navy_O4_insignia.svg licensed with PD-USGov-Military-Badge 2008-10-09T03:29:04Z Officer781...
DescriptionU.S. Navy O-4 insignia.svg English: Collar, shoulder, and sleeve rank insignia for a Lieutenant Commander in the United States Navy. Date 1/8/2008...
