| 1950 GEN MOTORS CORP Propeller Control Patent |
| 1950 GEN MOTORS CORP Spinner Mounting Patent |
| 1950 GEN MOTORS CORP Aircraft Propeller Patent |
| 1950 GEN MOTORS CORP Dual Rotation Propeller Art |
| 1950 MORRIS MOTORS LTD Gun Controlling Mechanism |
| 1950 GEN MOTORS CORP Draft Gear Patent Print Art |
| 1950 GEN MOTORS CORP Feed Mechanism Machine Guns |
| 1950 GEN MOTORS CORP Locomotive Coupling Art |
| 1950 GEN MOTORS CORP Accumulator Control Unit |
| 1950 BIRTMAN Speed Governor Sewing Machine Motors |
| 1950 HERSCHEL Safety Mounting Outboard Motors |
| 1950 GEN MOTORS CORP Domed Observation Car Art |
| 1950 VICKERY Carrier Stand Outboard Motors Art |
| 1950 GEN MOTORS CORP Bolt Mechanism Patent Print |
| 1950 GEN MOTORS CORP Spotlight Switch Patent |
| 1950 SPARKLIN Speed Governor Sewing Machine Motors |
| 1950 GEN MOTORS CORP Body Side Frame Patent |
| 1950 SCHROEDER Control Mechanism Outboard Motors |
| 1950 GEN MOTORS CORP Fluid Controlled Propeller |
| 1950 GEN MOTORS CORP Metal Structure Patent |
| 1950 GEN MOTORS CORP Lading Impact Absorber Art |
| 1950 GEN MOTORS CORP Locomotive Cab Construction |
| 1950 GEN MOTORS CORP Hinge Patent Print Art |
| 1950 Deft Driving Book by Ford Motors Dearborn Mich. |
| 1950 GM General Motors Massey ADVERTISING BOTTLE OPENER |
| 1950 General Motors Ad "Key To Free And Easy... |
| 1950 General Motors Ad Key To Purring Power... |
| 1950 General Motors Ad "Key To A Smoother Ride... |
| 1950 NASH Airflyte Nash Motors Advertisement |
| 2 1950's General Motors Hunting Booklets Raymond R Camp |