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).
List of modifications including a new front glass and a strengthened dipper bracket.
| Identifier | ExFiles\Box 61a\3\ scan0034 | |
| Date | 9th April 1935 guessed | |
| -2- (1) New front glass with plain centre. (2) Strengthened dipper bracket. Thanking you for your co-operation in these matters. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||