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).
Stamped cover page from the Derby works.
| Identifier | ExFiles\Box 19\7\ Scan110 | |
| Date | 1st April 1927 | |
| 1 P.INT.ROOM 1 APR 1927 DERBY. | ||