This vintage Mid Century Art Glass stopper is a hand-blown piece from an unknown maker. This clear glass round stopper is 3.4" long and features a traditional form. It is in great condition. I have used a micrometer to measure the very bottom of the stopper and it measures .73" and the top of the base (it tapers) section measures .97". Excellent condition. No chips or flakes. Please see my pics and please contact me with any questions. I will respond promptly. Thanks for looking.