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).
Procedure to check the accuracy of E.R. Hall's rev counter.
| Identifier | ExFiles\Box 90a\2\ Scan278 | |
| Date | 28th July 1934 | |
| Hs{Lord Ernest Hives - Chair}/G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Ratcliffe. x7962 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KW.28.7.34. E.R. Hall's Rev. Counter! We should get this car to a normal sort of temperature by running on the road, and then jack up and check the rev. counter for accuracy. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||