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).
Specifications for speedometer parts for a 'Calcutt' car.
| Identifier | ExFiles\Box 21\3\ Scan024 | |
| Date | 11th December 1918 | |
| To EH. from E.{Mr Elliott - Chief Engineer} COPY. 11th. Dec. 1918. E1/LG111218. RE SPEEDOMETER PARTS FOR "CALCUTT" CAR. Referring to your memo EH1/LG21218, re Calcutt speedometer, the following are the particulars you require:- (1) Size of front Wheel - 700 m/m dia. (2) Number of teeth in large sprocker - 59 (3) Rubbing of pitch of teeth in sprocket attached. E.{Mr Elliott - Chief Engineer} R R.{Sir Henry Royce} 286 a (200 T.) (S.L. SET. 21-8-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2199 | ||