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).
Note regarding design precautions for the centre casing and a material change for its cover.
| Identifier | ExFiles\Box 92\5\ scan0045 | |
| Date | 10th February 1936 guessed | |
| (sheet 2) We retain the inside fit as a precaution against distortion of the centre casing due to the use of a garage jack. The cover is now of aluminium instead of steel. E/HDY.{William Hardy} | ||