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).
Weight breakdown list of various car body components in imperial units.
| Identifier | ExFiles\Box 100\3\ scan0045 | |
| Date | 27th June 1938 guessed | |
| NAT/JMW. B O D Y. Cwts. qrs. lbs. ozs. Body Framed and panelled. 5 1 1 0 Running Boards (2) 22 guage. 24 0 Front Wings N.S. and O.S. 2 6 0 Rear Wings. 19 0 Apron. 1 4 Rear Wing Stays 2. 10 0 Petrol filler bracket 1 8 " " fixing plate 8 Wing and dash piping. 3 2 Step board rubber. 8 8 " " angle and staybrite plates. 2 12 Rear wing washers plates and bolts. 2 4 Stone Shields. 7 4 6. 2. 3. 2. Alls. difference excluding, Body framed and panelled | ||