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).
Order for B.V & B.50 road springs and bumper chassis for H.B.50 and existing B.50 cars.
| Identifier | ExFiles\Box 100\1\ scan0233 | |
| Date | 31th March 1939 | |
| HH6. Roy{Sir Henry Royce}/Ms Rm{William Robotham - Chief Engineer}/FWK. 10/JH. 31.3.39 Order for B.V & B.50 road springs for H.B.50; Bumper Chassis & existing B.50 cars. files 800a & 102H | ||