Dresden roses, crescent,bone dishes, set of six

whats the odds of finding a complete set of 6 of these lovely dresden roses bone dishes?? Some call them crescent dishes. They were made to sit along the curvature of your dinner plate. Each measures 6 3/8" x 3 1/4". Made of semi porcelain, Marked Dresden Semi-porcelain with a green laurel wreath logo on the back.A gentle relief on the edges with pink roses decoration and gold trim on the edges. Every one is perfect, and the gold trim is good and not worn. A very hard to find item, and especially in this quanity.