| 1925 MURRAY Train Control Mechanism Patent Print |
| 1925 BROGAN JAMES Stop Mechanism Patent Print |
| 1925 POHLER Propelling Mechanism For Boats |
| 1925 CAMP Brake Mechanism For Railway Cars Art |
| 1925 TUNSTALL Lyre Pedal Mechanism Grand Pianos |
| 1925 DOUGLAS Fire Control Mechanism Airplane Guns |
| 1925 KIENZLE UHRENFABRIKEN AG Pendulum Mechanism Clocks |
| 1925 GORTON Hand Trigger Mechanism Patent Print |
| 1925 CHARLES Firing Mechanism Automatic Firearms |
| 1925 FRANK Helicopter Mechanism Flying Machines |
| 1925 WRIGLEY HENRY Brake Mechanism Patent Print |
| 1925 REA Driving Mechanism Railway Car Generators |
| 1925 EMILE Mechanism Firing Percussion Time Fuses |
| 1925 WALTER Tilting Mechanism Self Discharging Wagons |
| 1925 DAVID Brake Mechanism For Vehicles Patent |
| 1925 SMITH Signal Operating Mechanism Art Print |
| 1925 NEWTON D HOLBROOK Operating Mechanism Timepieces |
| 1925 HANNAFORD Car Door Mechanism Patent Print |
| 1925 ERICH Pendulum Mechanism For Clocks Patent |
| 1925 WINKLEY Equilibrating Mechanism Flying Machines |