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).
Instruction not to drill grooves in crankshafts or alter white-metal intermediate bearings, sent to Allen Francobrit in France.
| Identifier | ExFiles\Box 146\3\ scan0281 | |
| Date | 30th December 1936 | |
| 1245. 30.12.36. ALLEN FRANCOBRIT LEVALLOIS-PERRET FRANCE. DO NOT DRILL CRANKSHAFT OR ALTER GROOVES IN WHITE-METAL INTERMEDIATE BEARINGS. GRYLLS ROYCAR. | ||