This is the next in the Steel Quilt Square series. The frame is in the Mission Style. The steel quilt square is rusted roofing with copper rivets. I increased the number of copper rivets in this one to mimic stitching. These rivets are incredibly small. The are 1/8 inch long and the shaft of the rivet is 5/64 of an inch in diameter. Like I said, way small. There is seeded glass in the bottom of the frame.