Soda Fountain Stools

This stool is one of seven I own.  The top is cast iron with a chrome finish.  The seat pad is red vinyl or similiar material, and a cast iron base, painted black.  Three stools had material tags, and one of those tags had a 1 cent Inspector's stamp from the New York Division of Bedding.  It appears that the stamp is from the 1920's or 1930's but that information is from a prelimary search on my part to date the stools.  All research on the internet points to these stools as being 1920's or 1930's soda fountain stools.  But I am looking to find out more and an estimated price.

Fair