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 two of a document discussing the effect of a small temperature difference on comfort.
| Identifier | ExFiles\Box 75\4\ scan0026 | |
| Date | 18th August 1910 | |
| (2) The two degrees difference in temperature obtained in this way is, I am afraid, too small to effect any increase in comfort. [Handwritten initials: BB] | ||