Comparing black finish samples to those from Lucas.
| Identifier | ExFiles\Box 38\6\ Scan175 | |
| Date | 31th March 1919 | |
| To EFC. {E. Fowler Clarke - Electrical Engineer} from BY. {R.W. Bailey - Chief Engineer} 31.3.19. X.3424 - BLACK FINISH "I do not consider these samples compare at all with finish of Lucas enamelled samples. These look grey". BY. {R.W. Bailey - Chief Engineer} | ||
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).