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).
List of required files, detailing reference numbers and their corresponding subject matter.
| Identifier | ExFiles\Box 22\1\ Scan232 | |
| Date | 26th March 1925 guessed | |
| Other files required SSAt:S.3.? X 8040. Pistons &* Rings S4 S4DL X 1692. H.P. Various Cars S4DL S4 X 1761. Camshafts X 500. 20/25 HP General. S4DL S.1 20/25 Engine & Chassis General " X 500b. 20/25 Power Curves - S1DL X 508. 20 H.P. Carb. | ||