U.S. Navy Officer Service Dress Blue Coat Works Intrepid Museum Vietnam War Era USMC Sergeant's Service Dress Blue Shade 2316 Wool Gab GRANDPOPSARMYNAVY New GI Woman's Navy Service Dress Blues Jumper Size 10JKT 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 Uniforms of the United States Navy Wikipedia Naval dress uniforms hi res stock photography and images Alamy