These simple candle holders are I think by Imperial Glass. They are not hallmarked, but the top of the holder is like many of their patterns in design. The holders are 2 3/4" tall on a 4" wide base. While I could not find these in my reference materials, the color seems more aquamarine, but could possibly be listed as green. They are beautiful and pristine.
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Personally Selected Vintage Glassware, Pottery, Jewelry and Collectibles from Fine Southern Estates.