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).
The testing of a sample Dunlop Worm Driven Jack and the decision to adopt them as standard.
| Identifier | ExFiles\Box 48\1\ Scan003 | |
| Date | 11th December 1923 | |
| Hs. {Lord Ernest Hives - Chair} V4124 ROY {Mr H. Royce - Buyer} /GEA3/K11.12.23 With reference to the sample Dunlop Worm Driven Jack, you are now testing. We should be glad to have a report from you concerning this at your early convenience, and would also remind you that we should adopt Dunlop Jacks as standard, and the Dunlop Co., state that we may have handles fitted by them to suit our requirements. ROY. {Mr H. Royce - Buyer} [Signature] | ||