| 1920 PFLAGER Mounting Locomotive Booster Motors |
| 1920 BACKER ELMER Geared Locomotive Patent Print |
| 1920 KELLOGG Locomotive Traction Increaser Art |
| 1920 IRONTON ENGINE Traction Locomotive Art |
| 1920 COLE Locomotive Driving Box Patent Print |
| 1920 COLE POWERS Electric Locomotive Patent |
| 1920 GLENDY Front Storm Window Locomotive Cabs |
| 1920 METALLURG Axle Box Adjustable Locomotive Axles |
| 1920 WILLIAMS Traction Locomotive Patent Print |
| 1920 COCHRANE Locomotive Crane Sander Patent |
| 1920 KLIPPEL Toy Locomotive Design Patent 10672 |
| 1920 JOHN PURCELL Locomotive Cab Seat Patent |
| 1920 SIMMONS Locomotive Driving Box Patent Print |
| 1920 PAUL Axle Box Adjustable Locomotive Axles |
| 1920 KENNETH Stub End Bearing Locomotive Rods |
| 1920 COLE FRANCIS Locomotive Truck Patent Print |
| 1920 BALDWIN LOCOMOTIVE WORKS Railway Truck Art |
| 1920 DONOVAN Storm Window Attachment Locomotive Cabs |
| 1920 HAUCK Locomotive Wheel Blocking Device Art |
| 1920 BALDWIN Stub End Bearing Locomotive Rods |
| 1920 BALDWIN LOCOMOTIVE WORKS Swing Truck Locomotives |
| 1920's DEMAG LOCOMOTIVE ENAMELED SIGN BADGE DUISBURG |
| 1920 LOUISIANA BRO LOCOMOTIVE FIREMEN ENG ODE SONG BOOK |
| Ashland, WS (c. 1920) "A Big Haul of Logs" Locomotive |