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).
Quoting a letter from The Benjamin Electric Ltd. regarding their Boyce Moto-Meter temperature gauge.
| Identifier | ExFiles\Box 40\5\ Scan027 | |
| Date | 26th October 1921 | |
| Hs.{Lord Ernest Hives - Chair} from Wd.{Mr Wood/Mr Whitehead} X3639 Wd{Mr Wood/Mr Whitehead}2/NJ26.10.21. RECEIVED OCT 28 1921 The Benjamin Electric Ltd. I confirm mine Wd{Mr Wood/Mr Whitehead}1/NJ26.10.21. We have this morning received a further letter from these people, dated 27th instant, as follows:- "May we take the opportunity of referring you to the "Distance type Boyce Moto-Meter on the last page of the "Catalogue. You will note that this instrument gives "temperature from zero to 100° Centigrade, and the "variation in temperature of the capillary tubing "between bulb and instrument head does not affect the "temperature indicated on the dial. "We are prepared to quote you exceedingly low "figures for this instrument as standard equipment, in "fact practically cost price, and if this is of interest "to you now or at any future time, we shall be pleased "to hear from you." Wd.{Mr Wood/Mr Whitehead} | ||