Design drawing for a Masked Valve for a No 2 Double Piston Damper.
| Identifier | ExFiles\Box 56\1\ Scan162 | |
| Date | 8th July 1940 | |
| MASK SWEATED ON & GROUND H.P. VALVE LEAK. .025 DIA F83361 TWO HOLES .055" DIA MASKED VALVE. Nº 2 DOUBLE PISTON DAMPER .028" 90° .350 DIA .707" DIA 8-7-40 M.S. | ||
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).