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).
Request to order 2 dozen Tecalemit filters for use on the experimental chassis unit test beds.
| Identifier | ExFiles\Box 135\3\ scan0224 | |
| Date | 11th January 1938 | |
| 1139 To Roy.{Sir Henry Royce} c. to G/JWH. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}14/JH.11.1.38. Will you please order 2 dozen Tecalemit filter of the type O.F.1054 type 123/12 for use on the experimental chassis unit test beds. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||