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 May 28, 2018 at 5:09 am #19601 RobertGuest I have a koken chair. A187241 I would also like to know how to decipher the SN to determine age.
