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 drawing of a filler neck featuring a stand pipe, perforated plate, and an overflow pipe.
| Identifier | ExFiles\Box 78\1\ scan0320 | |
| Date | 13th October 1921 guessed | |
| MACHINED OUT TO ALLOW STAND PIPE TO BE AS HIGH AS POSSIBLE. PERFORATED BRASS PLATE FIXED. SINGLE LARGE OVER FLOW PIPE. Z | ||