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).
Requesting the comparison of the 20 HP and New Phantom instruction books for revision.
| Identifier | ExFiles\Box 26\2\ Scan274 | |
| Date | 29th June 1927 | |
| CAP. RJA. HRW. G.J. X782 EFC3/T29.6.27. Please look over and compare latest 20 HP. Instruction Book with New PhantomCodename for PHANTOM I Book with a view to up-to-date revision of the latter, and let me have any or no recommendations. EFC. | ||