| 1943 SUBMARINE SIGNAL CO Magnetostrictive Oscillator |
| 1943 UNION SWITCH SIGNAL CO Remote Control System |
| 1943 UNION SWITCH SIGNAL CO Railway Track Circuit |
| 1943 FOSTER Life Preserver Distress Signal Art |
| 1943 UNION SWITCH SIGNAL CO Speed Responsive |
| 1943 UNION SWITCH SIGNAL CO Railway Signaling System |
| 1943 ALLCOTT KELLY Switch Signal Patent Print |
| 1943 UNION SWITCH SIGNAL CO Switch Control Circuit |
| 1943 UNION SWITCH SIGNAL CO Remote Control Art |
| 1943 UNION SWITCH SIGNAL CO Control Art Print |
| 1943 UNION SWITCH SIGNAL CO Train Detecting Reporting |
| 1943 AUTOMATIC SIGNAL CORP Control System Patent |
| 1943 UNION SWITCH SIGNAL CO Railway Signaling |
| 1943 UNION SWITCH SIGNAL CO Electrical Network |
| 1943 BELL WAIT Signal Recording Patent Print Art |
| 1943 KELLOGG Train Dispatcher Signal System Art |
| 1943 GEN RAILWAY SIGNAL CO Railway Signaling System |
| 1943 OTIS Automatic Railroad Crossing Signal Art |
| 1943 NICHOLS FRANK Signal Flare Patent Print Art |
| 1943 GILLESPIE Signal Apparatus Patent Print Art |
| 1943 UNION SWITCH SIGNAL CO Railway Braking Art |
| 1943 UNION SWITCH SIGNAL CO Indicating Art |
| 1943 EAGLE SIGNAL CORP Timing Mechanism Patent |
| 1943 PRIME MFG COMPANY Switch Signal Patent |
| 1943 GEN Control Machine Switch Signal Control Systems |
| 1943 ANTONI Railway Crossing Signal Patent Print |
| 1943 GEN RAILWAY SIGNAL CO Highway Crossing Gate |
| 1943 UNION SWITCH SIGNAL CO Generator Mounting Means |
| 1943 WESTERN RAILROAD SUPPLY COMPAN Signal Art |
| 1943 UNION SWITCH SIGNAL CO Electrical Art |
| 1943 LE Floating Signal Patent Print Art |
| 1943 LE COMTE Floating Signal Patent Print Art |
| 1943 GLENN Train Dispatcher Signal System Patent |
| 1943 UNION SWITCH SIGNAL CO Train Control System |
| 1943 UNION SWITCH SIGNAL CO Railway Switch Operating |
| 1943 UNION SWITCH SIGNAL CO Holding Means Instruments |
| 1943 UNION SWITCH SIGNAL CO Decoding Method Art |
| 1943 GEN RAILWAY SIGNAL CO Track Switch Railroads |
| Reader's Digest February 1943 Ben Hecht Signal Corps ++ |
| 1943 BRITISH ARMY LEATHER HOLSTER.FLARE / SIGNAL PISTOL |
| WWII 1943 US Army Signal Corps PRESS PHOTO 8x10 Italy |
| 1943 The Union Signal Journal of Temperance~Prohibition |