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).
Calculation of the weights of Palmer tyres, wire wheels, and other fittings.
| Identifier | ExFiles\Box 3\3\ 03-page097 | |
| Date | 3rd July 1913 guessed | |
| R.R.Limited-DRAWING OFFICE X200 5400. Weights of 'Palmer' tyres & Wire Wheels. Instrument & fittings weights. 1/2 cwt more than average Chassis 24 1/2 cwt with passengers | ||