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).
Amendment to the Airraid Precautions Scheme regarding the use of hand-bells and whistles for warnings.
| Identifier | ExFiles\Box 143\2\ scan0165 | |
| Date | 11th June 1941 | |
| Handwritten: 1 Copy passed on to Halliday? Have we any handbells? Rn{Mr Robinson}/RH.{R. Hollingworth} R- Clan Yardley- 1204 Typed: ROLLS ROYCE AIRRAID PRECAUTIONS SCHEME. AMMENDMENT NO.4 1. Hand-bells indicating "All Clear" will be rung ONLY if there has been a previous "gas Warning". 2. Whistles will now be used to give warning that Incendiary Bombs have fallen. The use of whistles to augment the "Red" or "Take Cover" warnings, will be discontinued. Hs{Lord Ernest Hives - Chair}/MM.6/PS. 11.6.41 Hs{Lord Ernest Hives - Chair}/MM | ||