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 cost and stock value of valves.
| Identifier | ExFiles\Box 35\3\ scan 049 | |
| Date | 22th August 1923 | |
| Hs.{Lord Ernest Hives - Chair} C O P Y. My/JW/N3/139A/M22. 8. 23. X. 2764 - VALVES. We return herewith copy of the above Std. Sheet with costs filled in. The value of finished and unfinished parts in stock at 21.8.23 is - £253. 8. 8d. My/JW. | ||