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).
Confirming the standardisation of modified aluminium split pistons after successful testing.
| Identifier | ExFiles\Box 77\3\ scan0184 | |
| Date | 27th April 1920 | |
| X 3751 To WOR.{Arthur Wormald - General Works Manager} from Hs.{Lord Ernest Hives - Chair} EFC Hsl/LG27.4.20. X.3751 RE MODIFIED ALUMINIUM SPLIT PISTONS With reference to the attached, the alteration which Mr. Royce refers to in his memo has completed 10,000 miles on three different cars. It has been standardised and pistons are now being produced with this improvement. [STAMP] EFC APR 27 1920 Hs.{Lord Ernest Hives - Chair} | ||