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).
Referencing a drawing for large bore pistons which have been standardised with a new part and casting number.
| Identifier | ExFiles\Box 87\2\ scan0118 | |
| Date | 17th January 1936 | |
| To BY/CS. xd 36, Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}16./KW.17.1.36. With reference to By/CS.2/EH.15.1.36, the drawing for the large bore pistons which we have standardised was given the number P.301 by the Light Production Co., and the casting No. C.227. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||