| Year | 1904 |
| Date | 07-Jan |
| Volume | 10 |
| Issue | 141 |
| Page | 21 |
| Category | Practical Letters from Our Readers |
| Part | |
| Title | Chucking Piston of Motor Bicycle |
| Author | E.M.S. |
| Notes | Piston in lathe centres, cross-piece fitted in open end of piston, centre marking, method of centreing |