TWO GROUPS OF TIFFANY STUDIOS FAVRILE GLASS TILES, one group of twenty-five tiles, of yellow, orange and red glass, set within a square frame--21 1/2 x 21 1/2 in. (54.5 x 54.5 cm.) size of the frame; one of sixteen tiles, of yellow, orange and red glass, molded with a quadrefoil motif in the center of each, set within a square frame--12 1/2 x 12 1/2 in. (31.8 x 31.8 in.) size of frame (2)