Request to place an official order for an Auto Klean Filter following a successful six-month test period.
| Identifier | ExFiles\Box 44\1\ Scan192 | |
| Date | 14th March 1928 | |
| To Roy. {Mr H. Royce - Buyer} from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} /4037 Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 1/LG14.3.28. had We have/an Auto Klean Filter on test for the past 6 months as you will see from the attached letter. We wish to retain this filter. Will you please therefore send an official order for it. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).