Vintage hammered copper coaster & plate set

175

Totally Arts and Crafts, not marked but great old hammered copper set. They have a set of 4 nicely hammered copper coasters and a plate with an attached cup. I am not sure what it is but looks really good and important. Beautiful and practical. Cheap price $175. Coasters measure to be 3 1/2" in diameter. The plate 10" x 6 1/4".
Cup is 2 3/4" in diameter x 2 7/8" high.