See the indicated fuel pump article on the "ponton page." It indicates sources and part numbers.
http://www.mbzponton.org/valueadded/maintenance/fuelpump/fuelpump.htm
A revision to its footnote 19 is in the works to take into account the fact that the same priming-type fuel pumps were also originally fitted to some or all of the 1960s fintails that came with the Solex carburetors originally; for example, the 220b to 1963 and the 220Sb to 1965.
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