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).
General arrangement drawing for the Sapphire 30HP model, drawn by V.G. Langley Howard.
| Identifier | ExFiles\Box 90a\4\ Scan208 | |
| Date | 16th March 1936 guessed | |
| V.G. LANGLEY HOWARD SAPPHIRE 30HP. G.A. 20. | ||