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).
Blueprint drawing of a modified suction chamber for China.
| Identifier | ExFiles\Box 102\1\ scan0015 | |
| Date | 31th March 1940 | |
| V732, 1.650 ±5, .726 ±5, .450 ±5, 1.150 ±5, SCALE ½., FOR ALL OTHER DIMENSIONS SEE F53021., MODIFIED SUCTION CHAMBER (CHINA)., APR, 31-3-40 | ||