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 40/50 distribution board and cutout test.
| Identifier | ExFiles\Box 65\2\ scan0101 | |
| Date | 22th September 1926 guessed | |
| CONNECTIONS FOR RR. 40/50 DISTRIBUTION BOARD & CUTOUT TEST. + D+ F+ D- V B A | ||