| Year | 1915 |
| Date | 14-Jan |
| Volume | 32 |
| Issue | 716 |
| Page | 31 |
| Category | Historic |
| Part | |
| Title | Some Historic Scale Models |
| Author | Geo. Gentry |
| Notes | Mr Restler, working model of the vertical compound surface condensing engines of the "Cristoforo Colombo", perspective view, end view |