Koken handle bearing

[Fredy M.]

I have what I believe is a 20’s porcelain Koken barber chair and was wondering if anyone has any knowledge of hydraulic schematics for the hydraulics and/or pump handle vertical bearings? As I am trying to restore, I found little metal pieces in the old hydraulic oil(not part of the brake). I also need a pump handle bearing, but the only one I found on ebay looked different from the pieces I have of the damaged one. Any help would be greatly appreciated! Thank you

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