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).
Blueprint detailing valve cap dimensions for S.S. Hydraulic Dampers.
| Identifier | ExFiles\Box 55\4\ Scan355 | |
| Date | 12th April 1929 guessed | |
| S.S. HYDRAULIC DAMPERS W D F d WITH A WASHER W OF .020 THICKNESS VALVE CAP DIMENSIONS SHOULD GIVE FRONT SPRING FS{F. Steele}4807 L.P. 1.010 H.P. .925 REAR, F76548 L.P. 1.040 H.P. .910 | ||