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).
Letter from The S.U. Company regarding the supply of D.5's in either bronze or hiduminium.
| Identifier | ExFiles\Box 121\4\ scan0034 | |
| Date | 21th June 1935 guessed | |
| THE S.U. COMPANY CONTINUATION No. 2 Messrs. Rolls-Royce Ltd. p.s. Also we can supply these pairs of D.5's in either bronze or hiduminium which ever you prefer. [Watermark: ABERMILL BOND MADE IN GT BRITAIN] | ||