London. Mr. Charles Gilbert. 05-10- 1872.
Wood-engraving, 12 x 19 inches on sheet size 13 1/4 x 19 1/2 inches, centerfold as issued, tipped-in on unrelated text sheet, from the May 10, 1872 issue of Engineering. Very good clean condition. Attractive illustration showing the inner workings of the locomotive. Includes a cross section view and top view. Item #48471