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).
Official order for Castrol XXl oil for the Experimental Department.
| Identifier | ExFiles\Box 134\4\ scan0145 | |
| Date | 18th July 1934 | |
| X4702 To Roy.{Sir Henry Royce} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/KW.18.7.34. Will you please send an Official Order to Messrs. Sanderson & Holmes for Castrol XXl. Oil supplied to the Exptl. Dept., as per their estimate attached, amounting to £1. 7. 8d. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||