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).
Revised blueprints for the grouping of separate switches.
| Identifier | ExFiles\Box 168a\2\ img424 | |
| Date | 17th April 1939 | |
| DA.{Bernard Day - Chassis Design}8/C.17.4.39. D.CD.834 GROUPING OF SEPARATE SWITCHES. We attach blueprints of the above, which has been revised and details altered by BY/RD. Please replace prints of this scheme, which have been issued previously. DA.{Bernard Day - Chassis Design} | ||