This glass insulator is from Hemingray.
It is clear in color and says Hemingray --12 on the front on the back Made In U.S.A. 22--41
Has a golden stamp on the top of the glass.
It comes to you in good pre-owned condition measuring approximately 3.5" tall and 2.5" in diameter. It has wear and is pre-owned but would make a fine vintage collectible.