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).
Laboratory report with micrographs showing an analysis of Bentley III front coil springs.
| Identifier | ExFiles\Box 119\1\ scan0101 | |
| Date | 9th May 1938 | |
| ROLLS-ROYCE LABORATORY REPORT: H1/EJW.2/GS.9.5.38. M.1,581/3 x60 M.1,581/4 x250 Bentley III Front Coil Springs. | ||