| 1938 CHINA CLIPPER Water Landing PHOTO |
| 1938 KEOUGH Safety Landing Airplanes Art Print |
| 1938 SIAM Retractable Landing Gear Aeroplanes |
| 1938 SIAM Retractable Landing Gear Patent Print |
| 1938 ALAN Winter Landing Gear Aeroplanes Art |
| 1938 UNITED AIRCRAFT CORP Retractile Landing Gear |
| 1938 KRAFFT & WEICHARDT Landing Sail Patent |
| 1938 RUDOLF Manipulating Aircraft Landing Sails |
| 1938 RUDOLF WEICHARDT Landing Sail Patent Print |
| 1938 GONZALES Aeroplane Landing Gear Patent |
| 1938 RAYMOND Landing Gear For Aircraft Patent |
| 1938 LUCIEN Retractable Landing Gear Patent |
| 1938 BRUNER Retractable Landing Light Patent |
| 1938 GRIMES Landing Light Airplanes Like Art |
| 1938 CURTISS WRIGHT CORP Landing Gear Locking |
| 1938 WALTER Landing Gear Locking Device Patent |
| 1938 SEYFERTH Original Design Landing Gear Patent 48954 |
| 1938 MAX Landing Flap On Aircraft Patent Print |
| 1938 LUCIEN Retractable Landing Gear Aeroplanes |
| 1938 KNUT Retractile Landing Gear Patent Print |
| 1938 HAVEN Landing Indicator GENERAL Patent 26135 |
| May 1938 Popular Science Monthly New Landing Craft |