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).
Communication from The Lodge Company, Rugby, requesting test results for steatite and mica spark plugs.
| Identifier | ExFiles\Box 162\6\ img071 | |
| Date | 16th April 1925 | |
| X4425 Hs.{Lord Ernest Hives - Chair} from ROY.{Sir Henry Royce} ROY{Sir Henry Royce}2/MG16.4.25 -------------- The Lodge Company, Rugby, write:- "Have you now been able to carry out an extended test "with the 12 detachable steatite plugs No.183/130. sent "you on February 20th? If so, we should much appreciate "a report from you on their behaviour. "We should also like to know if you have had an "opportunity of testing the Mica plugs Model Hl. sent you "on the same date. "Thanking you in anticipation of your reply, .... Will you kindly advise. ROY.{Sir Henry Royce} [Signature] [Stamp: RECEIVED 18 APR 1925] | ||