| Year | 1988 |
| Date | 17-Jun |
| Volume | 160 |
| Issue | 3,827 |
| Page | 720 |
| Category | On Shed |
| Part | 3 |
| Title | Nigel Minor. A 2 1/2 in. gauge version of the G.N.R. 2-8-0 locomotive Class O.1 |
| Author | Martin Evans |
| Notes | Boring the cylinder, machining the port face, cylinder covers, pistons, steam chests |