[Illustration: U. S. Coast Guard. Petty officers’ chevrons 1. Master-at-Arms 2. Signal Quartermaster 3. Water Tender 4. Electrician, Third Class] [Illustration: U. S. Coast Guard. Petty officers’ specialty marks 1. Wheelman 2. Electrician 3. Coxswain 4. Sailmaker 5. Carpenter, Plumber, Painter 6. Yeoman 7. Blacksmith 8. Bayman 9. Bugler] _The Sword and Sword Knot_ are the same as those for the officers of the U. S. Navy except that the letters “U. S. C. G.” are etched upon one side of the blade. _The Overcoat for Commissioned Officers_ of the Coast Guard is the same as that for officers of the U. S. Navy (see page 116), the rank and corps being indicated by the shoulder knots the same as those worn on the white service coat, and the rank also being indicated by stripes of black braid upon the sleeves, the number and widths of the stripes being the same as for the full dress and blue service coats. _The Cloak for Commissioned Officers_ is the same as that for officers of the U. S. Navy (see page 117). The Warrant officers of the U. S. Coast Guard are required to have complete outfits of blue dress, blue service dress, and for all except the Keepers of Life-Saving Stations, white service uniforms. The Keepers of Life-Saving Stations are required to have an olive-drab cotton service uniform in lieu of the white service uniform required for other warrant officers. _The Blue Dress Uniform_ for Warrant officers is the same as the blue service uniform for commissioned officers except that in place of the gold braid on the sleeves of the coat there is one stripe of black mohair braid one inch in width, and on each side of the collar the insignia of rank are worn, these insignia being for the various ranks as follows: _Master’s Mate_ Two gilt foul anchors crossed surcharged with a silver shield. _Keeper_ A gilt life buoy surcharged with two gilt oars crossed. _Boatswain_ Two gilt foul anchors crossed. _Gunner_ A gilt spherical shell bursting into flame. _Carpenter_ A gilt carpenter’s square. _Machinist_ A gilt propeller wheel. _The Blue Service Uniform_ is the same as the blue dress uniform. _The White Service Uniform_ for Warrant officers is the same as that for the commissioned officers except that the shoulder marks are not worn on the coat, the rank being indicated by metal insignia worn on the collar as described for the blue service coat, and the insignia worn upon the cap being two gilt foul anchors crossed and surmounted by a silver shield. _The Olive-drab Service Uniform_ worn by the Keepers of Life-Saving Stations is of the same design as the white service uniform worn by other warrant officers but the buttons and insignia worn with it are of dull finish bronze metal.