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).
Cross-sectional blueprint diagram of a pump mechanism, labelled as Figure 1.
| Identifier | ExFiles\Box 179b\3\ img020 | |
| Date | 30th October 1940 guessed | |
| FIG 1 PUMP PLUNGER PUMP BARREL SPILL PIPE PRIMING HOLE SPILL CHAMBER RELIEF PASSAGE IN PLUNGER SUPPLY PIPE | ||