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8 ratchet-lock gease cups

avec ondulation  The hard point is obtained by compression of the spring thanks to the undulation in the low part of the oiler detail 
en marguetite  A hard point obtained thanks to a sheet in the shape looks like a low daisy in the low part of the oiler. detail 
allen ajax AJAX of W.D. ALLEN M.G.F.  CO  ChICAGOtext of the cap W.D.Williamdetail
 unknom   unknow ratchet-lock unknow  greasers  all in brass.
 dfhg df Ratchet-lock of the french compagnie Albert LEFEBVRE  detail