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).
Battery capacity meter advertisement from The Autocar and suggesting a patent search.
| Identifier | ExFiles\Box 54\2\ Scan219 | |
| Date | 16th April 1928 | |
| S/W. {Sales / Derby Works} EFC. {E. Fowler Clarke - Electrical Engineer} X4454 CWB7/GM/16.4.28. BATTERY CAPACITY METER. Further to our conversation of Friday last, the enclosed advertisement from The Autocar of April 13th, shows exactly the instrument I was referring to. Perhaps you may think it worth while to look up the patent on which this instrument is based to see if there is anything either new or original in it which might make it of value. CWB | ||