Uniform of the Union Army letters US. Officers, NCOs and cavalry troopers were equipped with a sword belt with a rectangular buckle with eagle motif. Rank was displayed on epaulettes (dress occasions) or shoulder straps(field duties): no insignia for a second lieutenant, one gold bar for a first lieutenant, two gold bars for a captain, a gold oak leaf for a major, a silver oak leaf for a lieutenant colonel, a silver eagle for a colonel and one, two or three silver stars for a general, depending on his seniority. The color of the shoulder strap fields – with trims in gold braid – were
United States Coast Guard officer rank insignia United States Coast Guard officer rank insignia United States Coast Guard officer rank insignia describes an officer's pay-grade. Rank is displayed on collar devices, shoulder boards, and on the sleeves of dress uniforms. All Coast Guard officers are line officers, unlike the Navy, which has a staff corps to identify certain career fields. The volunteer United States Coast Guard Auxiliary does not use the rank system, but uses the modified Coast Guard officer rank insignia to signify a member's position within the organization. For example, a Flotilla Commander wears insignia similar to a Lieutenant. USCG Auxiliary officers wear silver braid