Seller: 778sandra (1,276) 100%, Location: Sarasota, Florida, Ships to: Worldwide, Item: 262734333204 Color: purple, Material: glass, Maker: American 3-way, Details: A pair of 4" square glass prism tiles made by the American 3-Way Company in the SNOWFLAKE pattern. In glorious condition for their age. Clear glass has turned purple from years of sunlight affecting the manganese dioxide in the glass. Glass prism tiles like this were used in commercial structures to reflect and refract sunlight into poorly lit interiors- you might see an upper row of windows full of prism glass above the display windows and entrance of an old building. Pretty just leaning on a windowsill with the light coming through. Since it was originally leaded and soldered there is some flaking on some on parts of the fins and edges, it is in no-way perfect because of age and exposure to the weather. However....they are both rare and beautiful. I am a private collector and these come from an entirely smoke free environment. I ship INTERNATIONALLY and IMMEDIATELY after receiving payment.