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).
Experimental order request for a Zenith Petrol Filter with a metal cover and two spare metal covers.
| Identifier | ExFiles\Box 44\1\ Scan204 | |
| Date | 23th May 1928 | |
| X3700 To ROY.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/An. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG23.5.28. Will you please order for us experimentally a Zenith Petrol Filter fitted with the metal cover instead of the glass and 2 spare metal covers. Hs{Lord Ernest Hives - Chair}/An. | ||