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).
Specification table for switchbox and starter switch components, detailing their colours and core types.
| Identifier | ExFiles\Box 168b\2\ img179 | |
| Date | 2nd May 1929 | |
| -3- BY/HEB{H. Biraben}14/M.2.5.29. Cont'd.{John DeLooze - Company Secretary} PIECE NO: | TITLE. | COLOUR. | CORE | SPEC NO: F.80598 | Switchbox to Magneto Switch. | Black. | 90/36's | 266. F.80600 | Starter Switch to Main Switch"C"Type. | Blue & White. | 70/36's | 261A. F.80601 | " " " " " " "D"&"E". | Blue & White. | 70/36's | 261A. F.80606 | " " " " " " "C"Type. | Black & Yellow. | 70/36's | 261A. F.80607 | " " " " " " "D"&"E". | Black & Yellow. | 70/36's | 261A. F.72577 | Dynamo to Both Board "c". | Black + white | 40/36's | 260A 'J' "Not required when Side Lamps are fitted to Scuttle". 'K' "Only required when Side Lamps are fitted to Scuttle". BY/HES | ||