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).
Assessing the sale value of a depreciated T.66 4 volt accumulator at 10%.
| Identifier | ExFiles\Box 46\1\ Scan058 | |
| Date | 30th January 1923 | |
| X4113 To Ms. from EFC. EFC4/T30.1.23. With reference to the attached, will you kindly note that the T.66 4 volt accumulator is one which we have had in use for a considerable time and has now so far depreciated in performance as to be of little or no use to us, having, as is the case, a number of experimental lighting batteries which have passed through the tests and which serve the same purpose. We accordingly assessed the value of this T.66 accumulator for the purpose of sale as 10% EFC. | ||