They are marked “Schott Zwiesel” on the bottom of the foot.
Schott Zwiesel Pure 23.4 Ounce Burgundy Glass, Set of 6: Wine Glasses: Wine Glasses
SCHOTT ZWIESEL Clear Red Wine Glasses for sale
Fashion Frontier Schott Zwiesel Tour Wine Glasses, break resistant wine glasses
Schott Zwiesel Pure Burgundy Glass - Williams Sonoma Australia
SCHOTT ZWIESEL Red Wine Glasses for sale
Zwiesel Glas Tritan Stemware Pure German Crystal Glassware Collection, 6 Count (Pack of 1), Burgundy Red Wine Glass
SCHOTT ZWIESEL Red Glassware & Drinkware
SCHOTT ZWIESEL Red Glassware & Drinkware
Schott Zwiesel Vina Large Burgundy Glass - Set of 6, Glassware; UK Glassware Suppliers
SCHOTT ZWIESEL Diva Series Burgundy Goblet (Box of 6)
ZWIESEL GLAS Pure Burgundy Wine Glasses
Schott Zwiesel Taste Burgundy Glass - Set of 6, Glassware; UK Glassware Suppliers
Schott Zwiesel Taste Burgundy Goblet(Box of 6)
Schott Zwiesel Burgundy red wine glass Taste