Unmarked Heisey (or Imperial?) glass champagnes in the colonial panel pattern. These are 20th century vintage glasses in the style of antique flint glass, really lovely.
It's a set of six glasses are in excellent condition, without damage or wear. They're 4 1/2" tall, 3 3/4" across the rim - they'd make good modern cocktail glasses if you use flutes rather than coupe bowl glasses for champagne.