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).
Mileage report for bone grey fibre rubbing blocks on experimental cars.
| Identifier | ExFiles\Box 69\1\ scan0365 | |
| Date | 2nd January 1925 | |
| EFC. 2.1.25. X.4646. BONE GREY FIBRE RUBBING BLOCKS. -------------------------------------- The mileage of the above on expl. cars to date is as follows :- Chassis. Sample Material. Miles run. ________ ________________ __________ 6-GII 1st. 6447 GF.68 2nd. 2884. 5-EX. 2nd. 4500 93-NK 2nd. 3822 ----- ---- ---- HEW. | ||