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).
Drawing detailing modifications to a bush for rockers, specifically for auto tappets.
| Identifier | ExFiles\Box 17\6\ Scan286 | |
| Date | 18th July 1934 | |
| Hls 1471 GROOVE ROUND BUSH .010 DEEP x .062 WIDE 1 HOLE DRILL .031 DIA (OTHER DIMENSIONS SEE 84415) MOD'N BUSH - ROCKERS (AUTO TAPPETS PT) ROLLS-ROYCE, LTD PRINT ROOM 18 JUL 1934 DERBY RHS 18-7-34 | ||