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).
Invoice from The British Filters Ltd. for 'General Filters'.
| Identifier | ExFiles\Box 136\3\ scan0107 | |
| Date | 4th December 1940 | |
| Oil filters 1139 Rm.{William Robotham - Chief Engineer} G/WFH/ST.63/MM. 4.12.40 We have received an invoice from The British Filters Ltd. dated 27th ult. charging one 4A "General Filters" at 97/6d. less 50% plus 12½%. If it is your intention to keep the above, will you please issue instructions to Roy{Sir Henry Royce} for a covering order. G/WFH. | ||