I don't believe this is an antique, but if you saw it at someone's garage sale, how much, at the most, would you be willing to pay for it. The top is 20" in diameter and it's 23" tall and in good condition.
I had a similar one that I paid $20.00 for at a garage sale several years ago.
I finally got rid of it when the glue/adhesive holding the top in place let go and another tube of the special adhesive cost more than the table was worth to me.
I set the two pieces on the curb and someone swooped them up within a couple of hours!