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).
Blueprint of a lever mechanism with dimensional measurements.
| Identifier | ExFiles\Box 137\4\ scan0113 | |
| Date | 7th November 1930 | |
| 5.260, 4.910, 3 FT., CL N.6 BRG, A, B, C, D, 6.000", .250", .750", 7.060, 8.060, WLB., DIMENSIONS MEASURED OFF ARRG.T DRG. G.53692., LIMITED, ROOM, 7 NOV 1930, DERBY. | ||