Uniform: Dinner dress blue jumper, Navy enlisted men, ranks E 1 through E 6 NARA & DVIDS Public Domain Archive Public Domain Search US Navy Dinner Dress Blue Jacket: Gold Buttons, Handmade Military Style Etsy U.S. NAVY MALE OFFICER DINNER DRESS BLUE JACKET UNIFORM According to the 1975 U.S. Navy Uniform Regulations, the rarely seen Service Dress Blue (Yankee) uniform was for "warm weather afternoon and early evening functions such as yachting parties." The uniform was