| 1930 PEREZ Aeroplane Propeller Governor Art |
| 1930 HERMAN Emergency Propeller Air Craft Art |
| 1930 FRANK Boat Propeller Unit Patent Print Art |
| 1930 MURRAY Screw Propeller Marine Vessels Art |
| 1930 BRUNO Turbine Wheel Propeller Motor Art |
| 1930 PITTSBURGH SCREW BOLT COMPAN Propeller Art |
| 1930 STEFAN PIESIK Propeller Patent Print Art |
| 1930 WILLIAM BRAAT Propeller Patent Print Art |
| 1930 MAX Propeller Vessels Aircraft Art Print |
| 1930 BARNOW Propeller Mechanism Patent Print Art |
| 1930 WENDT Propeller Attachment Patent Print Art |
| 1930 ENGSTRAND GUNNAR Propeller Patent Print Art |
| 1930 CONWAY Propeller Patent Print Art |
| 1930 JAKOB Adjustable Propeller Patent Print Art |
| 1930 DONOHUE Propeller Mechanism Aircraft Art |
| 1930 DICKS Propeller Art Print Patent |
| 1930 CAPULATOR AKTIEBOLAGET Screw Propeller Art |
| 1930 SLONIMSKY Propeller Airplanes Like Art |
| 1930 BUCHET Electric Motor Propeller Unit Art |
| 1930 VICTOR Aeroplane Propeller Patent Print Art |
| 1930 LAZARE Turbine Wheel Propeller Motor Art |
| 1930 CONWAY FRANCIS Propeller Patent Print Art |
| 1930 CARTER SIDNEY Propeller Patent Print Art |