Here is one thick chunk piece of blue glass. It is an unembossed Pennyquick. The Pennyquick method of manufacturing left the mandrel in while glass cooled leaving very sharp internal threads. Has a couple, almost worth not mentioning, pings on the base...but I like to mention anything that would keep from being mint. The petiticoat base is tipped and a bit crude. I just picked this piece up thgis wekeend. It has a nice milk streak that parallels the wire rim (just above the wire rim) and then dips down below the wire groove and then back up. A nice character feature. How about $30.00 shipped. Insurance is your option.