Antique Prism Glass tiles used in the late 1800′s, early 1900′s to bring light into a room by redirecting Natural Light from outside. These tiles have aquired a deep purple color from being exposed to decades of sunlight. Each tile measures 4″ x 4″. Included are (8) rare “Snowflake” tiles. These tiles are in excellent condition for being over 100 years old. One has a tiny fleabite on the edge, and another has a chip on the back side (shown in last photo). Each tile has an “X” in the corner designating LUXFER. Antique LOT (8) Frank Lloyd Wright LUXFER PRISM GLASS TILES, rare 4X4 SNOWFLAKE. Get images that make Supersized seem small. Showcase your items with Auctiva’s. Track Page Views With.