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).
Order for a custom-calibrated 20 HP speedometer with a cream dial.
| Identifier | ExFiles\Box 6\4\ 04-page199 | |
| Date | 12th December 1928 | |
| To ROY{Sir Henry Royce}/Ms. S from Hs{Lord Ernest Hives - Chair}/Bn.{W.O. Bentley / Mr Barrington} X5310 Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}3/LJS.12.28. 20 HP. SPEEDOMETER. X 4308 Will you please order for us one small dia. A.T. speedometer with a cream dial and black figures similar in colour to those supplied for the patch of instruments but with a standard casing. The speedometer should be calibrated to 680 revs/mile i.e., the car gear ratio is 5% lower than the standard 20 HP. Hs{Lord Ernest Hives - Chair}/Bn{W.O. Bentley / Mr Barrington} | ||