| Year | 1939 |
| Date | 02-Feb |
| Volume | 80 |
| Issue | 1,969 |
| Page | 143 |
| Category | Railway |
| Part | |
| Title | Electric Traction |
| Author | C.Baker |
| Notes | Various A.C. and D.C. systems, Fundamental differences discussed. Three phase motor car Stanstaad-Engelberg Railway (photo by C.Baker), direct current systems, overhead catenary line and 12-wheeled motor car Lotschberg Railway, track equipment, |