Original watercolor signed and dated 1943 by Crown; view across ocean of gigantic thundercloud over distant island mountain which could be a volcanic eruption.
Original wash drawing in colored ink by Crown; anti-aircraft gun, camouflaged with rows of sticks, behind reinforced barricade; trees on rolling hill in background.
Original pencil sketch by Crown; fortified American anti-aircraft position at edge of beach, trees in background; drawing includes descriptive notes about ammo well, personnel dugout, …