From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Listing part numbers for a bonnet jig.
| Identifier | ExFiles\Box 117\4\ scan0008 | |
| Date | 13th January 1941 | |
| 13-1-41 ✓ E 722-88, 89, 90, 91 ✓ 60, NS.{Norman Scott} & O.S. 59, NS.{Norman Scott} & O.S. Bonnet Jig | ||