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).
Telegram instructing a change in the diameter of dynamos and motor carcases to align with other manufacturers.
| Identifier | ExFiles\Box 61b\3\ scan0130 | |
| Date | 2nd June 1921 | |
| Roycar Derby Clerk We have decided that to be in line with other makers our dynamo and motor carcase should be four and half five and six inches diameter Stop Work on all other sizes Pending instructions you will receive tomorrow Royce | ||