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).
Internal order request for one dozen 14mm X.306 plugs from the Lodge Plug Co.
| Identifier | ExFiles\Box 162\4\ img018 | |
| Date | 30th August 1933 | |
| K 19.8.e Order Office. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 8/KT. 30. 8. 33. Will you please order one dozen 14 mm. X.306 plugs from the Lodge Plug Co. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||