What a fascinating set of images here. We dug this up at the Library of Congress. You’re looking at the original patent drawings by the Wright Brothers for their Wright Flyer from 1903.
Subject File: Patents–By Wright Brothers–USA–filed 23 March 1903, patented 22 May 1906
Subject File: Patents–By Wright Brothers–USA–filed 23 March 1903, patented 22 May 1906
Subject File: Patents–By Wright Brothers–USA–filed 23 March 1903, patented 22 May 1906
Source: Library of Congress
