| Year | 1939 |
| Date | 23-Nov |
| Volume | 81 |
| Issue | 2,011 |
| Page | 573 |
| Category | Workshop |
| Part | |
| Title | Gauges and Gauging |
| Author | R.Barnard Way |
| Notes | For those on National Service. Deciding upon the limits, the four types of fit and the limits imposed, a simple plug and ring with a horseshoe non-limit gauge, limit plug gauges, a plug gauge for larger cylinders |