The insignia indicating the rank, worn on each sleeve midway between the shoulder seam and the elbow, consist of a ship’s steering wheel embroidered in white for quartermaster and a three-bladed propeller embroidered in red for machinist. [Illustration: U. S. Lighthouse Service. Officers’ collar insignia and sleeve braiding Collar insignia (Gold embroidery) 1. Deck Officers 2. Engineer Officers Sleeve braiding (Black mohair braid) 3. Captain 4. Chief Engineer 5. Master of Tender 6. First Officer, Engineer, 7. Second Officer, First 8. Third Officer Second Master, Lightship Asst. Engineer, Asst. Engineer, First Mate, Second Lightship Mate, Lightship] [Illustration: Insignia for Lighthouse Keepers and Watchmen Light Stations and Depots Keepers of lighthouses K for keeper 1 for first assistant keeper 2 for second assistant keeper 3 for third assistant keeper 4 for fourth assistant keeper] [Illustration: Watchmen at general depot Shield Hat ornament U. S. Lighthouse Service] For hot weather a uniform of white duck is provided, the design and the insignia being the same as for the blue uniform except that the sleeve stripes are of white braid. Seamen of the crew wear blue and white uniforms similar to the working uniforms for the enlisted men of the United States Navy, and the firemen wear a blue dungaree uniform of the same pattern. Stewards, cooks and mess attendants wear a cap similar to the officers’ cap but without ornaments or braid; a plain single-breasted coat with standing collar and plain trousers. The coats for steward have gilt buttons, the cooks and mess attendants plain buttons. UNIFORMS AND INSIGNIA FOR OFFICERS AND ENLISTED MEN OF LIGHTSHIPS The officers wear a uniform of navy blue cloth for winter and of navy blue serge or flannel for summer, consisting of a double-breasted sack coat with turn-down collar and lapels, with five gilt buttons on each side; a single-breasted waistcoat with a rolling collar and five small gilt buttons; plain trousers; and a cap the same as described for officers of lighthouse tenders. Insignia are worn on the lapels of the coat, a gold anchor for deck officers and a gold three-bladed propeller for engineer officers. Stripes of black mohair braid are worn on each sleeve, as follows: _Master._—Three stripes one-quarter inch wide. _First Mate._—Two stripes one-quarter inch wide. _Second Mate._—One stripe one-quarter inch wide. _Engineer._—Two stripes one-quarter inch wide. _Assistant Engineer._—One stripe one-quarter inch wide. The overcoat is the same as that for officers of Lighthouse Tenders. The enlisted men of the lightships wear the same uniforms as those described for the enlisted men of the lighthouse tenders. UNIFORM AND INSIGNIA OF LIGHTHOUSE AND DEPOT KEEPERS