| Year | 2012 |
| Date | 13-Jan |
| Volume | 208 |
| Issue | 4,421 |
| Page | 88 |
| Category | Stationary Engine |
| Part | 7 |
| Title | Armstrong's Hydraulic Pumping Engine |
| Author | Anthony Mount |
| Notes | Makes the stop valve and starts on the governor. Stop valve wheels, steam inlet, the governor spindle, the main stop valve, the governor |