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).
Shock dampers, agreeing to trial a piston made from cast iron.
| Identifier | ExFiles\Box 16\4\ Scan269 | |
| Date | 11th March 1931 | |
| HS{Lord Ernest Hives - Chair}/RM.{William Robotham - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} X7820 DA{Bernard Day - Chassis Design}3/M11.3.31. X.7520. X.235. SHOCK DAMPERS. Replying to Hs{Lord Ernest Hives - Chair}/RM{William Robotham - Chief Engineer}2/MJ9331., we quite agree that the piston should be tried in cast iron. DA.{Bernard Day - Chassis Design} | ||