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).
Information regarding A.T. speedometers ordered for a grouped instrument board.
| Identifier | ExFiles\Box 50\4\ Scan160 | |
| Date | 22th December 1927 | |
| X4308 22nd. December 1927. Information received from O.O. on 15.12.27 re A.T. speedometers ordered for grouped instrument board. Nos. of instruments 677, 689, 706, 707, 728, 729. (730) Order No. 69724 of 2.9.27. Piece No. F.75777. EFC. {E. Fowler Clarke - Electrical Engineer} No. 728 is fitted to 14-EX. | ||