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).
Laboratory report on the viscosity test of Amber Gear Oil.
| Identifier | ExFiles\Box 76\3\ scan0121 | |
| Date | 11th May 1920 | |
| R.R. 235 B (50 T) {S.G. 504. 8-1-20} G 2585. Mr Hives. H14/EBL1520. Laboratory. Re Amber Gear Oil submitted on 10.5.20. for Viscosity test. Viscosity:- At 130 °F.{Mr Friese} 890 At 212 °F.{Mr Friese} 107 lrdl Hs{Lord Ernest Hives - Chair} MAY 11 1920 RECEIVED | ||