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).
With a diagram detailing recommended clearances for chassis pistons.
| Identifier | ExFiles\Box 35\2\ scan 075 | |
| Date | 19th May 1919 | |
| To EY. From EH. EH1/LG19.5.19. 19th. May 1919. X.3400 RE CHASSIS PISTONS. We recommend the following clearances should be used on the chassis pistons:- .018" taper .008" taper .004" [Signature] M 2307 500 Bks 79-99 B & T Ltd F 95/7 | ||