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).
Brief typed acknowledgement regarding Phantom Bonnets.
| Identifier | ExFiles\Box 12\7\ 07-page126 | |
| Date | 1st September 1930 | |
| X7260. S/W Hs.{Lord Ernest Hives - Chair} RECEIVED [stamp] SEP 2 1930 [stamp] Phantom -------- Bonnets [stamp] C6/01.9.30. Thanks for your Hs{Lord Ernest Hives - Chair}2/MJ29.8.30 and I am advising OY. accordingly. C. | ||