| 1931 Convention Medal: Locomotive Firemen and Enginemen |
| 1931 FREDE Locomotive Structure Patent Print Art |
| 1931 HORSMAN Window Inclosure Locomotive Cabs Like |
| 1931 GUSTIN Folding Adjustable Locomotive Cab Seat |
| 1931 JAMES Turbine Driven Locomotive Patent |
| 1931 KIESEL JR Locomotive Frame Patent Print Art |
| 1931 GEN STEEL CASTINGS CORP Locomotive Structure |
| 1931 TRAVILLA Locomotive Spring Equalizing System |
| 1931 WOODARD WILLIAM Locomotive Patent Print Art |
| 1931 GEN Locomotive Spring Equalizing System Art |
| 1931 FRANTZ Locomotive Sanding Device Patent |
| 1931 JONES Locomotive Tender Structure Patent |
| 1931 GEN Oil Electric Locomotive Platform Art |
| 1931 HAVEMEYER Locomotive Tender Patent Print |
| 1931 GEN Locomotive Tender Structure Art Print |
| 1931 BRIAN WHEELER Locomotive Truck Patent Print |
| 1931 MUHLFELD JOHN Locomotive Bed Patent Print |
| 1931 FIRM SULZER FRERES SA Diesel Electric Locomotive |
| 1931 WESTINGHOUSE ELECTRIC CO Locomotive Truck |
| 1931 KEEN JOHN Locomotive Cab Patent Print Art |
| 1931 ANDERSON Folding Adjustable Locomotive Cab Seat |
| 1931 BLUNT Locomotive Structure Patent Print Art |
| 1931 BRUCE ALFRED Locomotive Bed Patent Print |
| 1931 SHEEHAN Oil Electric Locomotive Platform |
| 1931 LOUIS CARUSO Toy Locomotive Patent Print |
| 1931 EDOUARD Diesel Electric Locomotive Patent |
| 1931 STANDARD STOKER INC Locomotive Tender Art |
| 1931 HAMMER THEODORE Locomotive Pilot Patent |
| 1931 ELLIOTT EDWARD Locomotive Truck Patent |
| 1931 BOYER Controlling Locomotive Engine Bells |
| 1931 ANDERSON Locomotive Tender Patent Print Art |
| 1931 "Multi-Pressure 3-Cylinder Locomotive For NYC" |
| Vintage 1931 Locomotive Steam Engine Train Book/Manual |
| 1931 TRAIN AUTOMATIC CONTROL EQUIPMENT locomotive book |
| 1931 American Locomotive Company Ad |