Enlisted Navy Uniforms, Markings circa 1917
Enlisted rating badges blue uniform 1 Chief Master-at-Arms 2 Boatswain's Mate, First Class 3 Gunner's Mate Second Class 4 Quartermaster Third Class
Chief Petty Officer in White Uniform -One service stripe (Over four years service) -Non Seaman branch (Rating badge on left arm)
Chief Petty Officer in Blue Dress uniform -Two service stripes (Over eight years service) -Seaman branch (Rating badge on right arm) -Square knot below rating badge (former apprentice) Boatswain's Mate First Class in Dress Blue uniform -Seaman branch (Rating badge on right arm)
Seaman in Peacoat Chief Petty Officer in Overcoat
Seaman in White Dress Uniform
Seaman in White Undress Uniform
Seaman undress blue uniform with white hat
Seaman in dungaree uniform; in flannel shirt with watch cap
Enlisted specialty marks 1 Master-at-Arms 2 Boatswain's mates, coxswains 3 Quartermasters 4 Blacksmiths, ship fitters 5 Sailmakers' mates 6 Printers 7 Carpenters' mates 8 Turret captains 9 Gunner's mates 10 Storekeepers 11 Yeoman 12 Electricians 13 Machinists' mates, boiler makers, water tenders 14 Hospital Corps (red) 15 Bandmasters, musicians 16 Commissary stewards
	Enlisted specialty marks 17 Ship's cooks, bakers 18 Bugler Distinguishing Marks (Right sleeve midway from shoulder to elbow) 19 Seaman-gunner 20 Gun-captain 21 Gun pointer 22 Navy E 23 Expert rifleman 24 Radio operator 25 Torpedoman 26 Ex-apprentice
Officer Uniforms and Insignia 1917
Reference: Uniform Regulations United States Navy, 1913 (Revised to January 15, 1917), Washington DC, Government Printing Office, 1917