| Year | 1926 |
| Date | 22-Apr |
| Volume | 54 |
| Issue | 1,304 |
| Page | 436 |
| Category | Light Engineering Equipment and Supplies |
| Part | |
| Title | Lawn Mowers (Drummond Bros) |
| Author | |
| Notes | The Drummond "Willing Worker" ball-bearing lawn mower, method of adjusting clearnance between blades and fixed cutter, adjustment for parallelism |