Original highly-detailed signed ballpoint sketch of the Enola Gay flying away from the Hiroshima mushroom cloud, with interesting particulars added by Jeppson, on an off-white 11 x 8.5 sheet, signed “Lt. Morris Jeppson, Weapon Test Officer, Aug. 6, 1945 Mission,” and also initialed at the bottom by Jeppson. In very fine condition. A well-done first-hand account of one of the world’s most significant moments in history. RRAuction COA.