| Year | 2002 |
| Date | 31-May |
| Volume | 188 |
| Issue | 4,170 |
| Page | 409 |
| Category | Armament |
| Part | 2 |
| Title | A Dwarf Traversing Platform With 7in. Rifled Breech Loader |
| Author | David Wilcox |
| Notes | Coastal and fortress defence weapon. Elevating screw, gun, sights, racers, roller handspikes, finish |