| Year | 1924 |
| Date | 31-Jul |
| Volume | 51 |
| Issue | 1,214 |
| Page | 129 |
| Category | Workshop Topics |
| Part | |
| Title | How to Make a Master Square |
| Author | |
| Notes | A master square defined, types of squares used by mechanics, simple form of master square, to make a master square, reference tools required, the general procedure, dealing with the plate in the first place, a suitable case, to use the master square |