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).
Steering positions with associated codes and file references.
| Identifier | ExFiles\Box 97\5\ scan0333 | |
| Date | 17th January 1939 | |
| H50a. Rm{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design}3/G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 17.1.39 Steering Positions 9 B.V, 7 B.V r 25G VI in file 1300 + 600, | ||