"20 mm AA gun on a Liberty ship - Silhouette" From "Darkroom Soldier": "Gun and Cloud. While waiting on the Russell Sage, Hill took various ship-board photos, including this of a 20 mm anti-aircraft gun silhouetted against a spectacular cloud."…
"Two Liberty ships, as seen over AA gun sight" From "Darkroom Soldier": "On the SS Juan Cabrillo. Luminous clouds above, Liberty Ship a far silhouette, 20 mm anti-aircraft gun up close -- the young photographer documented these apparently commonplace…