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).
Electrical experimental record sheet for a bone grey fibre rubbing block.
| Identifier | ExFiles\Box 69\1\ scan0364 | |
| Date | 21th October 1924 | |
| ELECTRICAL EXPERIMENTAL RECORD SHEETS. Bone grey fibre rubbing block No T2 (2ND Sample) X NO. 4646 Date on. Location. Date off. REMARKS. Miles reading start. Miles reading finish. Miles covered. Total miles. 24-10-24 | lab | 27-10-24 | Dimensions .255" top .263 Bottom. Fitted to 93NK 4-11-24 | 93NK | | | 4321 | .0301 | 5980 | 14-2-25 23-3-25 | " | 17-6-25 | Chassis dismantled. Fitted with 6EAC II engine. Measurements after test .255 top .257 bottom. Max wear .006" | 673 | considerably over | 10000 mls 17-6-25 | lab [Vertically on right side] X.4646. [Bottom left corner] 21.10.24. [Red number in center] 18 | ||