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).
Specification sheet for a 50 set experimental production run.
| Identifier | ExFiles\Box 161a\3\ scan0034 | |
| Date | 27th January 1939 | |
| BY/NS.{Norman Scott}1/G.27.1.39. SPECIFICATION. 50 SETS EXPERIMENTAL PRODUCTION. Sec.No. | Title | LOP. No. | 1st. 50 Exp. Production Chassis. | 250 Production Chassis. | Wraith Type Gearbox. 6151 | Front Brake Equaliser. | FB.4022 14.12.38. | Held up 25.1.39. Pending decision on Gearbox. | | G.CD.1149 7000 | Frames and Fittings. | FB.3658 FB.4211 7.1.39. | Frame Makers Assembly Frame LOP. Parts affected by Gearbox have not been released. | As 50 sets as far as released. | 7001 | Wing Stays. | FB.3664 14.12.38. | To LOP. | To LOP. | No change 7008 | Front Bumpers | FB.3238 14.12.38. | To LOP. | To LOP. | No change. 7030 | Rear Springs. | FB.4372 14.12.38. | To LOP. 2" Tension Rear Shackle. | To LOP. | No change. 7040 | Front Axle. | FB.4339 7.1.39. | To LOP. | To LOP. | No change. 7041 | X. Strg. Tube. | | Nickel Steel Tubes jumped up ends. New LOP. being prepared. | Parallel tube - mild steel, if satisfactory on 9.B.5. | No change. | ||