Chart detailing switchbox arrangements for various vehicle models.
| Identifier | ExFiles\Box 65\2\ scan0027 | |
| Date | 1st March 1929 | |
| SWITCHBOX ARRANGEMENTS. X2730 3/29 | General Diagram | 20 H.P. Standard | 20 H.P. India(Production 20 HP. with 4-speed box and Front Wheel Brakes) or auto switch | Phantom. Standard. | Phantom. Expl. | 40/50 H.P. S.S. First. | 40/50 H.P. S.S. E.F.C. | 40/50 H.P. S.S. Final (O.K. for green lamp sch.) | Auto switch arrgt. | |---|---|---|---|---|---|---|---|---| | C | - | - | M & C | M & C | M&C | M&C | M&C | M&C | | I & C. | I & C. | I & C. | M.B&C. | M.B&C. | M.B&C. | M.B&C. | M.B&C. | M.B.&C. | | I | I | I(&A) | B | M & B | M. {Mr Moon / Mr Moore} &B (&A) | M & B | M & B | B (& A) | | OFF | OFF | OFF | OFF | OFF | OFF | OFF | OFF | OFF | | - | - | - | - | - | - | - | - | - | N.B. Red underline indicates the M cases which can be cut out by separate magneto switch. EFC. {E. Fowler Clarke - Electrical 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).