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).
Recommendation for a K-S gauge with a twin pipe which provides a pressure balance.
| Identifier | ExFiles\Box 44\3\ Scan032 | |
| Date | 8th October 1928 | |
| To G/Rb.{R. Bowen} from Hs.{Lord Ernest Hives - Chair} c. to BY.{R.W. Bailey - Chief Engineer} +4038 Hs{Lord Ernest Hives - Chair}2/LG8.10.28. With reference to G/RO{C. C. Rose - Export Manager}3/M/143A/BJ8.10.28. The type of K-S gauge we recommend is the one with the twin pipe which gives a pressure balance. Hs.{Lord Ernest Hives - Chair} | ||