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).
Two models of Lanchester speakers on a sale or return basis.
| Identifier | ExFiles\Box 27\4\ Scan246 | |
| Date | 14th April 1931 | |
| To Roy.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X 3035. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/MJ.14.4.31. Will you please obtain for us on sale or return - One Senior Model, and one Junior Model of The Lanchester Permanent Magnet Moving Coil Speakers - particulars of which we attach herewith. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||