Luxfer Raindrop Prismatic Glass Tiles good designed by Frank Lloyd Wright

good 9 Frank Lloyd Wright style prismatic tiles Raindrop design. The design is very popular and they are 4" x 4" believed mfg by Luxfer Prism Glass The back of the tile is a sawtooth that made the light bend back into the building when the sun came through the front. They were mfgd around 1900. Some may have a small chip in the edge that does not affect the function or looks of the tile. Shipping will be 12.00. These tiles come from the Mildred Block building in Chadron, NE. now home to the Bean Broker Coffeehouse and Pub.