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).
Complete specification document featuring three electrical circuit diagrams.
| Identifier | ExFiles\Box 147\2\ scan0309 | |
| Date | 9th May 1940 guessed | |
| 515,731 COMPLETE SPECIFICATION SHEET 1 2 SHEETS SHEET 2 [This Drawing is a reproduction of the Original on a reduced scale.] Fig. 1. Fig. 2. Fig. 3. Malby & Sons, Photo | ||