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).
Status report on the mileage of Tall Permanol coils on various test chassis.
| Identifier | ExFiles\Box 45\4\ Scan251 | |
| Date | 9th July 1924 | |
| X4079b EFC. WA.{Mr Wallis}59. 9.7.24. X.4079b- TALL PERMANOL COILS ON 6-GII and 7GII. The above coils TR{Capt. F. W. Turner - Finance}1 and TR{Capt. F. W. Turner - Finance}2 have done up to date 6322 and 7445 miles respectively on 7-GII and 6-GII At present TR{Capt. F. W. Turner - Finance}3 is fitted to 7-GII but has not done any appreciable mileage. TR{Capt. F. W. Turner - Finance}2 is still running on 6-GII. TR{Capt. F. W. Turner - Finance}4 is on 3-GII. HEW. | ||