Dramatic original 1947 AP Wirephoto showing the wreckage of a Chicago & North Western work train after its locomotive boiler exploded near Lake Preston, South Dakota. The blast killed workmen and left the locomotive nearly skeletonized; the boiler was reportedly hurled 200 feet up the track, tearing up rails and scattering steel across the area. Photograph and separate original AP caption are mounted together on black archival paper. Overall size measures approximately 8¾ x 8 inches. Shows typical age, handling wear, tape and newsroom/archive use as pictured. This came from the archive of a Pittsburgh area newspaper. A striking railroad disaster image with strong industrial, transportation and catastrophe appeal.