Antique Barber Chairs, why collectors love them › Forums › Koken Barber Chairs › Koken President serial and age check › Reply To: Koken President serial and age check August 4, 2020 at 7:29 pm #39823 Alvin hannahGuest I have a koken chair and I cant find anything about it. The numbers on the bottom of the seat is H-37166
