Inquiry regarding F.10. valves.
| Identifier | ExFiles\Box 54\3\ Scan209 | |
| Date | 1st July 1926 guessed | |
| Any interest in connection with F.10. valves? Rm {William Robotham - Chief Engineer} | ||
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).