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).
Blueprint showing top and side elevation views of a mechanical component.
| Identifier | ExFiles\Box 163\7\ img038 | |
| Date | 14th January 1919 | |
| No. X-8126 3 1/2 3/8 RAD. 3 3/16 .196 DRILL 4 HOLES I 3/8 4 1/4 5/8 CHANGES NO. DATE 5996 1-14-19 | ||