Authentic pieces may feature the "Diamond H" trademark, which is a stylized letter 'H' inside a diamond shape.
Vintage Heisey Clear Glass Double Candlestick Holder Warwick Cornucopia set of 2
Vintage Heisey Elegant Glass Basket Hexagon Shape Clear Etched Floral Design
Vintage Heisey Clear Pressed Glass Basket Applied Handle Floral Grape Pattern
Antique Heisey Clear Glass Set 6 Nut Dish Open Salt Cellar Beaded Edge Footed
Heisey Clear Glass Giraffe Figurine
Vintage Heisey Clear Crystal Oscar Plug Horse Sparky-Balking Colt-Proud Pony-3
