Glass light diffusers that we believe are from a Duluth soda fountain/apothecary. They are 151/2" large with a 7" hole in the. They have 3 little holes for hanging and we have 35 grommets that fit the holes. They would make a fantastic fountain function in a garden with water cascading. Great texture. Selling the lot of 11 that includes 2 that are cracked for $100 or finest offer.