/ / / / / / 10000385
Editorial staff, International correspondence schools
Scranton, PA. International textbook company
1925
viiI, illus.
Locomotives Valve – Walschaert Valve Gear – Stephenson Valve Gear – Locomotive Valve setting – Baker Locomotive Valve Gear – Southern Locomotive Valve Gear – Ragonnet Reverse Gear – Young Locomotive Valve Gear
supervised by J.W. Harding
TAB 5