| Year | 2021 |
| Date | 02-Jul |
| Volume | 227 |
| Issue | 4,668 |
| Page | 78 |
| Category | Locomotive |
| Part | 76 |
| Title | The Barclay Well Tanks of the Great War |
| Author | Terence Holland |
| Notes | Describes and constructs two appealing, century old locomotives. Valve gear, return crank, eccentric rod, expansion link/ die block, radius rod, drop link, union link, combination lever, weighshaft, support bearing, lifting arm and lifting lever, reach rod, reversing lever and quadrant, gear on prototype |