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).
And sketch concerning louvres for an Edinburgh type model.
| Identifier | ExFiles\Box 75\4\ scan0178 | |
| Date | 20th May 1919 guessed | |
| Louvres for Edinburgh type [Faint background text:] TYPE B V M K S C A M [Stamped number:] 171 | ||