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).
Calculating the weight of coachwork with additions to a B.III body to create a B.50.
| Identifier | ExFiles\Box 112\2\ scan0027 | |
| Date | 27th June 1938 guessed | |
| Appendix. Weight of Complete Coachwork of 1.B.5 less accessories. Cwts. Qrs. Lbs. 9 0 7 Additions to B.III body to make B.50. Increase in height of panels - 1.500 9 Increase in height of head & glasses 2.000 6 Increase in length of body in doors 3.000 1 2 Addition of quarter light. 15 Addition of running boards. 2 0 Addition of division & tables. 2 14 Total. 10 2 25 Say 10 3 0 Actual weight of body - 12 0 1 | ||