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).
The weight of a Humber car with a Pullman body, including fluids.
| Identifier | ExFiles\Box 126\2\ scan0002 | |
| Date | 23th February 1921 | |
| X.1525 Mr. Hives. 23.2.21. Weight of Humder complete with Pullman body - water, oil - petrol 6 galls. Front tons cwts. qrs. 13 2 Rear 14 2 Total 1 8 0 H'B N'P's (100-1) S H 10P 10-13-20 (c) 3042 | ||