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 the appearance of a fractured 13 hrs. spring.
Identifier | ExFiles\Box 119\1\ scan0205 | |
Date | 11th May 1939 | |
ROLLS-ROYCE LABORATORY REPORT: H1. MJW. S/JM.{Mr Morley} 11.5.39. M.1840/5. X 1 1/2. Appearance of fracture of 13 hrs. spring. | ||