Keywords: Standard rail profile.png rail profile 1898 cite book Willson Frederick Newton Practical engineering drawing and third angle projection http //archive org/download/practicalenginee00willrich/practicalenginee00willrich pdf PDF New York London Macmillan Co 1898 38 Willson Frederick Newton 1855-1939 PD-old-auto-1923 1939 Rail track profiles Rail transport diagrams |