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 box AC cutout test.
| Identifier | ExFiles\Box 65\2\ scan0206 | |
| Date | 11th November 1930 guessed | |
| CONNECTIONS FOR RR U/H/FI. DISTRIBUTION BOX AC CUTOUT TEST. R A V B + - | ||