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).
Urgent memo specifying the requirements for a 20 HP speedometer for car 17-GIV.
| Identifier | ExFiles\Box 50\4\ Scan294 | |
| Date | 5th May 1929 | |
| X4308 To ROY. {Sir Henry Royce} from Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} Hs {Lord Ernest Hives - Chair} /Rn {Mr Robinson} 3/LG1. 5. 5. 29. 20 HP. SPEEDOMETER - to suit old type patch, arrangement drg. F.77718. The speedometer piece No. is F.77569 and it is to suit a car with a rear axle of 11 X 50 and tyres making 680 revs/mile. It should have a cream dial to match oil gauge and read to 80 m.p.h. This instrument is for 17-GIV and is urgent. Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} | ||