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).
Table detailing the absolute viscosity of Aeroshell oil at various temperatures.
| Identifier | ExFiles\Box 145\1\ scan0063 | |
| Date | 12th December 1933 guessed | |
| CONFIDENTIAL ABSOLUTE VISCOSITIES. AEROSHELL Absolute Viscosity @ 20°F.{Mr Friese} 1,070 centipoises " " @ 0°F.{Mr Friese} 8,300 " " " @ -5°F.{Mr Friese} 15,850 " " " @ -10°F.{Mr Friese} 31,600 " | ||