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).
On a daily planner page addressed to Mr Heyman.
| Identifier | ExFiles\Box 157\3\ scan0145 | |
| Date | 21th September 1930 | |
| File Ruf/wyH. Mr Heyman. Please discuss on my return RM{William Robotham - Chief Engineer} Sunday September 21st 39th Week 264-101 | ||