| 1944 MCCANN Railway Traffic Controlling Art |
| 1944 MCCANN Centralized Traffic Controlling System |
| 1944 UNION Railway Traffic Controlling Art |
| 1944 PFLEGING Railway Traffic Controlling Art |
| 1944 SHIELDS Railway Traffic Controlling Art |
| 1944 GEORGE Torpedo Controlling Device Patent |
| 1944 HORN Railway Traffic Controlling Art Print |
| 1944 THOMPSON Railway Traffic Controlling Art |
| 1944 ROQUE Collecting Controlling Billiard Games |
| 1944 STEPHEN Controlling Mechanism Patent Print |
| 1944 WALTER Motion Controlling Device Patent |
| 1944 SHEPARDSON Railway Traffic Controlling Art |
| 1944 MCCANN Railway Traffic Controlling Art |
| 1944 UNION Centralized Traffic Controlling System |
| 1944 LAURENSON Railway Traffic Controlling Art |
| 1944 ELGIN NAT WATCH Motion Controlling Art |
| 1944 CARL Magnetic Motion Controlling Mechanism |
| 1944 STOLLER Signal Controlling Fusee Patent |
| 1944 CULBERTSON Railway Traffic Controlling Art |
| 1944 VANTASSEL Railway Traffic Controlling Art |
| 1944 BAUGHMAN Railway Traffic Controlling Art |
| 1944 PELIKAN Railway Traffic Controlling Art |