| Year | 1923 |
| Date | 21-Jun |
| Volume | 48 |
| Issue | 1,156 |
| Page | 655 |
| Category | Workshop |
| Part | |
| Title | Patterns for a Model High-Speed Engine |
| Author | E.C. |
| Notes | Crankcase coreboxes, (1) corebox for main body, (2) core for crosshead guides, (3) Core for inspection door hole, (4) and (5) cores for bearings |