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).
Sketch detailing the minimum and maximum dimensional tolerances for the P1 Rear Springs.
| Identifier | ExFiles\Box 52\2\ Scan276 | |
| Date | 18th April 1931 guessed | |
| 10.000 MAX 9.750 MIN 10.000 MAX 9.750 MIN P1 REAR Springs | ||