| Year | 2021 |
| Date | 23-Apr |
| Volume | 226 |
| Issue | 4,663 |
| Page | 559 |
| Category | Stationary Engine |
| Part | 2 |
| Title | Thompstone Engine |
| Author | Jason Ballamy |
| Notes | Builds a mill engine first described in Model Engineer 120 years ago. Valve block, end flanges, feet and oiler boss, exhaust block, cylinder assembly, cylinder machining, valve chest and cover, gland nuts, rear cylinder cover, front cover |