The Antique Chandler Cast Iron Adjustable School Desk Chair Base, it is called "The Boston". Made of durable cast iron the base is adjustable from 10" to 15 1/2" in height and is 10" in diameter at the very bottom. the top is 7" x 6". It has been cleaned and finished with rust resistant gloss back paint. We have a number of other similar bases listed in our e-Bay store category "Iron Base".
