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).
Reference note for previous correspondence concerning 40/50 & Phantom models in the U.S.A.
| Identifier | ExFiles\Box 19\3\ Scan001 | |
| Date | 21th September 1931 | |
| FOR PREVIOUS CORRESPONDENCE RE. 40/50 & PHANTOM IN U.S.A. SEE X.3614 (STRONG ROOM). Hs{Lord Ernest Hives - Chair}/MJ.21.9.31. | ||