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).
Proposed modification to a water pump cover, showing changes to the inner core.
| Identifier | ExFiles\Box 77\4\ scan0108 | |
| Date | 18th July 1922 guessed | |
| Inner Core modif'd to remove thick metal Proposed modification to Water Pump Cover. 1.100 DIA 2.300 DIA for all other dimn's See E51364. | ||