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).
Bone Grey Fibre Rubbing Block, part number X.4646.
| Identifier | ExFiles\Box 69\1\ scan0351 | |
| Date | 28th August 1924 | |
| To EFC.from RHC.{R. H. Coverley - Production Engineer} X4646 RHC{R. H. Coverley - Production Engineer}2/LS.28.8.24. X.4646 - BONE GREY FIBRE RUBBING BLOCK. With reference to your EFC1/T27.8.24, we have fitted Contact Breaker Lever 2C. to Chassis 98-NK, and Lever 2D, to Chassis 5-EX. RHC.{R. H. Coverley - Production Engineer} | ||