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).
The extra cost in bonus hours and materials for making Rocker Cover and Tappet Cover Nuts for the Bentley 3½ Litre.
| Identifier | ExFiles\Box 3\4\ 04-page381 | |
| Date | 4th July 1933 | |
| Sft.{Mr Swift}4/D1.4.7.33. Hs.{Lord Ernest Hives - Chair} BENTLEY 3½ LITRE. Ref. R/JNR.{Charles L. Jenner}1/HL.1.7.33 - LBG43531. The extra cost for making Rocker Cover Nuts and Tappet Cover Nuts, separate design from Std. 20/25-H.{Arthur M. Hanbury - Head Complaints} would be about 12 bonus hours over the series. We should also expect a little increase in material cost due to sectional bar. Sft.{Mr Swift} | ||