| Year | 1927 |
| Date | 05-May |
| Volume | 56 |
| Issue | 1,356 |
| Page | 411 |
| Category | Stationary Engine |
| Part | |
| Title | A Model Entablature Steam Pumping Engine |
| Author | Geo. Gentry |
| Notes | Special bolts with square nuts, mock studs and nuts, methods of filing squares, making a former tool, reference diagram for dimensions of studs |