Chilling original color 24.25 x 48 US Strategic Bombing Survey of atom bomb damage on Nagasaki, Japan, showing population, blast radius, and predicted damage, signed in the lower right in black felt tip, “Frederick L. Ashworth, Commander, US Navy, ‘Weaponeer’ Bock’s Car, Over Nagasaki, Japan, 9 August 1945.” In very good condition, with intersecting storage folds, a few repaired tears, a couple small holes at fold intersections, some scattered light creases, and a mild shade of overall toning. Folded. RRAuction COA.