Design sketch for a three-post electrical component, likely a switch or connector for lamps.
| Identifier | ExFiles\Box 179b\1\ img351 | |
| Date | 10th March 1933 guessed | |
| Screw to regulate drop. Comp: spring. Flex: Connection to lamps or other group. /Some fingers on each post. Made of sheet brass or extruded metal. Split and clamped on bar. | ||
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).