I am trying to find out the value of two Extensole armchairs, with tags on the underseat indicating manufacturing by Sparta Furniture Shops in Sparta, Michigan. The tags indicate that the chairs were manufactured in accordance with the Michigan laws of 1923, 1926 and 1929. The armchairs are wooden with gold colored seat cushions and back cushions made of "rebonded latex rubber." The backs of the chairs are mid-back horizontal panels with a gold-colored wooden star engraved within. They are in fairly good condition. Can you give me an idea of how much they are worth? Thank you.