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).
Photograph and dimensional drawings of a tachograph instrument.
| Identifier | ExFiles\Box 113\2\ scan0165 | |
| Date | 11th November 1930 guessed | |
| Fig. 2 EIN AU Papiervorschub KILOMETRES 10, 20, 30, 40, 50, 60, 70, 80 BREVET S.G.D.G. Fig. 3 1:3 233 170 51 114 20 40 10.2 150 37.5 24.5 6.4° 15.5ø 25.75ø 30/1° 248 R=140 95.5 107.5 50.5 9 18 97 308 116 38 54 | ||