HEMINGRAY T.S. 20-62 INSULATOR GLASS VINTAGE 3.75". VINTAGE TWO GROOVE GLASS INSULATOR MARKED HEMINGRAY 20-62 ON ONE SIDE AND T.S. ON THE OTHER SIDE. IT IS 3.75" TALL AND 2 5/8 " WIDE AT BASE.
THE SCREW DIAMETER IS SMALL ABOUT 3/4".
THE CONDITION IS GREAT. THE COLOR IS CLEAR GLASS. THERE ARE NO BUBBLES INSIDE OF GLASS.  KEPT IN A SMOKE FREE HOME.