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).
Letter discussing the expected failure timeline and inspection of batteries.
| Identifier | ExFiles\Box 54\2\ Scan119 | |
| Date | 10th October 1927 guessed | |
| -2- Contd. These batteries must, however, ultimately fail and conceivably will do so within the next 12 months. At the time of inspection it will be interesting to know that the results will be reasonably applicable ( or otherwise) to batteries which are going into service at the present time. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||