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 increase of a die size to achieve a lower spring rating and a comment on production parts.
| Identifier | ExFiles\Box 102\6\ scan0184 | |
| Date | 19th August 1937 guessed | |
| going to increase the die and get a considerably less rating of spring to give us about 55-60 lbs. On production you just might as well throw the shoe away as this is as it is. R.H.H. | ||