| Year | 1949 |
| Date | 28-Jul |
| Volume | 101 |
| Issue | 2,514 |
| Page | 99 |
| Category | Workshop |
| Part | |
| Title | "Fine Feeds" |
| Author | E.G.Smith |
| Notes | The gear partly dismantled, adaptable, central bush and sun wheel, spider and planet wheel, epicyclic reduction gear, mounted on an "M.L.7", care needed, pins and washers, machining, the back cover |