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).
Wiring diagram for a distribution board and cutout test for the 40/50 model.
| Identifier | ExFiles\Box 70\4\ scan0041 | |
| Date | 9th May 1924 guessed | |
| CONNECTIONS FOR RR. 40/50 DISTRIBUTION BOARD & CUTOUT TEST. D+ F+ D- + V B A | ||