Lot of 3 Lucite thick heavy screw down beveled edge single card holders USED

Lot of 3 used heavy lucite screw down display holders for standard size single cards, with beveled edges. 2 holders are 1/2 inch thick and the other is 1 inch thick. No recesses, with four corner screws. All 3 are gently used with light to moderate nicks, scratches and scuffing. ONLY ONE LOT AVAILABLE FOR SALE.