| Year | 1934 |
| Date | 06-Dec |
| Volume | 71 |
| Issue | 1,752 |
| Page | 535 |
| Category | Locomotive |
| Part | |
| Title | Modelling Three-Cylinder Locomotives |
| Author | Henry Greenly |
| Notes | J.R.Jeffress' 7 1/4"g. model, conversion of Walschaerts gear from piston valves to suit slide valves, Mr Gresley's arrangement of three cylinders on the Pacific engines, L.M.S. "Royal Scot" cylinder inclination |