I recently purchased a Koken Barber chair, it has a porcelain arms and base as well as a round seat that sits on a porcelain base. It was not in terrible condition but I sandblasted, and cleaned up and retouched the porcelain to get it back to working condition( the real work will have to come later) I have not been able to find anything on the chair to identify the year this chair was built although there are #'s on the footrest that have been worn down and are unreadable. The person I bought it from had owned it for over twenty years but purchased it from an antique store and had no information on it. Is there anyway to find out?