I have aquired three old barber chairs. I looked on ebay and other sites but I could not find any info. Chair one is a Koken Congress Pedestal Hydraulic pat Oct. 22, 1895 & Dec. 3, 1901. This is stated on the tag on the back of the barber chair. It has a round wood pedestal base. Second chair is a Koken Congress One Lever chair with a four leg wood base with a rear crank turn screw. The third is a Archer Barber Chair that has just a step in the back for ratcheting up the chair. It has a stand alone Chair Step dated Sep. 23, 1876 Patenied, May 25, 1886. The Chair Step is a three step foot rest. I would like any help that might be out there. I am new to forums.