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).
Page suggesting the use of 7 inch semi-balloon tyres.
| Identifier | ExFiles\Box 47\1\ Scan116 | |
| Date | 12th March 1925 guessed | |
| -2- glaring than irritation due to engine and transmission. I suggest strongly here that for moderate speed the 7" semi-balloon tyres should be carefully examined and used if possible. R.{Sir Henry Royce} [Watermark: MADE AT CROXLEY] | ||