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).
Performance comparison graph between Stromberg UB-1 and Solex 35.V carburetors on a 6 cylinder 80 x 120 engine.
| Identifier | ExFiles\Box 122\1\ scan0145 | |
| Date | 1st June 1930 guessed | |
| 6 Cyl. 80 x 120. B.H.P. STROMBERG UB-1 SOLEX 35.V. R.P.M. Pints / B.H.P. / HR. | ||