| 1938 LOS Braking Mechanism For Railway Cars Art |
| 1938 HARDMAN PECK Piano Mechanism Art Print |
| 1938 BOYLE Valve Mechanism Art |
| 1938 WALLACE Circuit Controlling Mechanism Art |
| 1938 MCCULLOUGH Switch Timing Mechanism Art |
| 1938 HOKE HARRY Brake Mechanism Patent Print Art |
| 1938 NAT Uncoupling Mechanism Car Couplers Art |
| 1938 KNIGHT Reclining Seat Control Mechanism Art |
| 1938 JAMES Fraud Preventing Mechanism Game Art |
| 1938 SUPERIOR HAND BRAKE CO Brake Mechanism Art |
| 1938 MINER INC W H Quick Take Up Mechanism Art |
| 1938 HEIL CO Hoisting Mechanism Patent Print Art |
| 1938 LE Feed Mechanism For Sewing Machines Art |
| 1938 WAUGH EQUIPMENT Cushioning Mechanism Art |
| 1938 GEORGE Feed Mechanism Sewing Machines Art |
| 1938 WURLITZER CO Accordion Shift Mechanism Art |
| 1938 BURGESS Propulsion Mechanism Aircraft Art |
| 1938 UNION Feed Mechanism Sewing Machines Art |
| 1938 JOSEPH PAVELKA Switch Timing Mechanism Art |
| 1938 DOWD Sewing Machine Feeding Mechanism Art |
| 1938 Selective Control Mechanism Radio Sets Art |
| 1938 CLARK Cushioning Mechanism Patent Print Art |