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).
Letter to British Thomson Houston Co. Ltd. regarding the incompatibility of submitted twin filament headlamp bulbs.
| Identifier | ExFiles\Box 167\1\ img273 | |
| Date | 19th August 1938 | |
| 6116 - EXPERIMENTAL DEPARTMENT. Rm{William Robotham - Chief Engineer}/RC.{R. Childs}6/JH. 19th August, 1938. British Thomson Houston Co.Ltd., Crown House, Aldwych, LONDON.W.C.2. Your ref. WHL/GD. Dear Sirs, We thank you for the twin filament headlamp bulbs which you have submitted for our test. Unfortunately these bulbs will not fit our headlamps, which have lamp holders of the continental dimensions. We are therefore returning the bulbs, together with one of our adaptor holders, under separate cover, so that you may either provide suitable bulbs, or suggest a suitable adaptors in which case, we shall be pleased to carry out tests on the road. - Yours faithfully, FOR ROLLS-ROYCE LTD. | ||