Fresh from a local estate, I just picked up these tumblers. They were made by Heisey Glass Co and the pattern is "Crystolite".

The tumbler has a ribbed or melon shape and a ground flat bottom. The glasses measure 3-7/8" tall and holds 9 ounces. This glass is in excellent vintage condition, NO CHIPS, CRACKS, STAINS OR REPAIRS. It is much clearer than the photos appear. It comes from a smoke-free home. You are buying just one tumbler but I have a total of six for sale. Please e-mail if you have any questions.