Keywords: USS Trinity (AO-13) in July 1942.jpg Aerial port side view of the U S Navy fleet oiler USS Trinity AO-13 showing her deck layout She was armed with 12 7 cm/51 guns forward and aft and 7 6 cm/50 AA guns in gun tubs port and starboard on the forward part of the after superstructure The forward 12 7 cm gun was fitted with an open backed shield an unusual practice in us auxiliary vessels 302761 1942-07-13 Australian armed forces Image copyright Copyright expired - public domain frame cropped PD-Australia USS Trinity AO-13 ship 1920 Pacific War in July 1942 |