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).
Standardisation sheet for Mercury Sparking Plugs for the standard chassis.
| Identifier | ExFiles\Box 50\2\ Scan037 | |
| Date | 19th February 1921 | |
| To Ws. from Hs {Lord Ernest Hives - Chair} /LG. [Handwritten]: X-4295 [Handwritten Signature]: HS {Lord Ernest Hives - Chair} Hs {Lord Ernest Hives - Chair} /LG19.2.21. [Underlined]: Mercury Sparking Plugs for Standard chassis. [Underlined]: Standardisation Sheet X.4295. The above experiment is now going through for standardisation. Hs {Lord Ernest Hives - Chair} /LG. [Faint watermark]: ROLLS-ROYCE 1904 | ||