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).
Page 2 of a letter stating that a sketch of the bits being used is attached.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan045 | |
| Date | 15th August 1929 guessed | |
| -2- We attach a sketch of the bits we are using. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||