Walther scallop large glass blue green purple on sale bowl platter.

This plate may be a Walther glass platter. There is no mark.. When lighting hits on this large platter, it illuminates as one can see on the photos. This platter has colors of blue, green and purple. It has on sale a swirl design as if the plate is moving in circles. This platter measures 12.25 x 2.25 inches.