| Year | 1987 |
| Date | 15-May |
| Volume | 158 |
| Issue | 3,801 |
| Page | 586 |
| Category | Steam |
| Part | |
| Title | Expansive Working |
| Author | G.Eveniss |
| Notes | Economies to be gained in small locomotive practice. Photos by A.D.Stump (U.S.A.). The late J.N.Maskelyne admiring Curly's Caterpillar on the Polar Route, Curly at speed on Caterpillar in 1937, Curly (LBSC) preparing Caterpillar for a run |