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).
Confirming the decision to keep the Klaxon horn after trials and requesting an official order be placed.
| Identifier | ExFiles\Box 59\3\ Scan136 | |
| Date | 4th December 1931 | |
| X6077 Roy{Sir Henry Royce}/Ms. from Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.5/ADL4.12.31. KLAXON HIGH FREQUENCY HORN FOR 20-GIV We have now tried the Klaxon and the Delco horn which you kindly obtained for us on approval and we have decided to keep the Klaxon. Will you therefore please send an official order through for same. Hs{Lord Ernest Hives - Chair}/Wst. | ||