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).
Note alluding to a report by Thompson concerning car radios.
| Identifier | ExFiles\Box 168b\1\ img262 | |
| Date | 21th May 1940 guessed | |
| 6153 Alluded to in a report by Thompson on Car radios. K / RC{R. Childs} | ||