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 showing a microscopic image of an oil extract from a Bentley engine crankshaft.
| Identifier | ExFiles\Box 115\3\ scan0156 | |
| Date | 17th December 1937 | |
| ROLLS-ROYCE LABORATORY REPORT: H1.4/RS.{Sir Henry Royce's Secretary}17.12.37. M.1508/2 X 10 Part of extract from oil taken from pins and journals of V.C.M. crankshaft Y.701 - Bentley Engine No. M3BB. | ||