Proteus Design had a (big) drawer full of Silca foot pump parts the last time I stopped in after Ken Sanford's vintage ride a couple years ago. I don't remember seeing the leather cup shaped washer, but check them out. They're in College Park, Maryland. Their telephone number is (301) 441-2928 and the owner is Jill DiMauro, who at least used to be a CR member at jill@proteusbicycles.com
Good luck,
Dan Artley in Parkton, Maryland USA, who's an owner of a not so nicely preserved Raleigh Pro that rides just great!
Archive-URL: http://search.bikelist.org/
hi all there's been plenty of interest in raleigh pro's here's a well preserved lge. example that went for 1474 +, nice photos if you save that kind of thing...i do. i am also looking for a current source for the rubber seals and leather washer that comprise the wearable parts of ye old silca floor pump..i'm good w/hoses and heads(i think) though any replacement part availibility would be appreciated.....kevin ruberg howell nj usa