Libby gold leaf 10oz beverage glass Set of 6 glasses. Each glass has what appears to be a manufacturing defect in the frosting on the glasses. They are all identical. Could they be valuable because of this defect? Category: Glassware and CrystalDate Period: 1960sFor Sale?: No Know something about this item?Log In and Add New CommentIf you don't have InstAppraisal accountclick here to create one for free!