Blueprint of a petrol pump modification showing a reduced clearance volume.
| Identifier | ExFiles\Box 17\5\ Scan140 | |
| Date | 15th June 1933 | |
| DOTTED LINES INDICATE ORIGINAL SHAPE. FILLING METAL BROKE AWAY HERE LEC 2961 PETROL PUMP REDUCED CLEARANCE VOLUME 4 C.C'S. N.B. THE FABRICS HAVE A WAVY OUTLINE WHEN AT MAX STROKE. | ||
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).