Armed with my Barrington Hayes i think this might be the oldest charity shop glass i have found, purchased today for 20p. However, as always, i'm prepared to be shot down in flames. It's just under 3 inches in height 1 5/8th inches across the rim and 2 inches across the base and has the most wear i have ever seen to it's rim edge for a glass this size. It has a cracked pontil, a lovely ring to it and one tiny white seed in the glass. regards Chris.