Vought O2U-1 observation plane on board the USS MILWAUKEE. The "Flying turtle with a hash mark" indicates that the plane is a "shellback" twice over, having made two flights over the Equator on 18 January 1931. This photograph was probably made shortly after those flights took place. The gun-like object in the center background is a loading machine for the 3"/50 anti-aircraft guns carried by this ship. Loading machines were used for dry loading exercises and helped to minimize unnecessary wear and tear on the guns themselves.
Neg. given by Mr. Franklin Moran in 1967.
Naval History and Heritage Command