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).
The failure of three 25/30HP Mellotone Horns during testing.
| Identifier | ExFiles\Box 166\9\ img082 | |
| Date | 23th April 1937 | |
| 6066 from Mr. [REDACTED] Mx{John H Maddocks - Chief Proving Officer}11/T23.4.37 25/30HP - Mellotone Horns. Three of these failed on test yesterday. We believe they are "broken down" to earth. Will you please let me know if you require any special action to be taken with regard to these three failures, or should we send them back in the ordinary way? [Signature] Mac{Mr Macintosh} | ||