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).
Acknowledgement of receipt for a 40mm gun installation drawing and preliminary handbook.
| Identifier | ExFiles\Box 175\3\ img278 | |
| Date | 7th December 1940 | |
| Ve. from Rm.{William Robotham - Chief Engineer} re pls - Installation pl (recto note) Rm.{William Robotham - Chief Engineer}12/ML.7.12.40. #3 Many thanks for the installation drawing of the 40 mm. gun and the Preliminary Handbook. Rm.{William Robotham - Chief Engineer} | ||