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).
Graph comparing the performance of R.R. and 'Amal' petrol pumps versus pump speed.
| Identifier | ExFiles\Box 17\5\ Scan158 | |
| Date | 14th June 1932 | |
| PETROL PUMP TESTS. COMPARISON BETWEEN R.R. AND "AMAL" PUMPS. DELIVERY PTS/HR. PUMP SPEED R.P.M. R.R.LEC2961 "AMAL" DOUBLE FABRIC "AMAL" METAL PISTON | ||