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).
Confirming the delivery of miniature lamp holders for a lighting installation and requesting they be blackened.
| Identifier | ExFiles\Box 38\3\ Scan207 | |
| Date | 11th October 1919 | |
| To Mr. Hall from EFC. EFC1/T11.10.19. X.3362 - LIGHTING INSTALLATION AT W.W. This is to confirm that we have handed to you 7 Miniature Lamp Holders. Will you kindly gave these blackened. There are two more required, and these we will send down to you when available. EFC. | ||