Used, these are 11 brooches purchased by my mother during her travels. They are still usable, but there are slight tarnishes, peeling, and some warping of the clasps. They were purchased at hot spring resorts and cost around 3,000 to 5,000 yen each. All the boxes have been discarded. The materials are imitation, but the boxes indicated they were Kutani ware, coral, natural stone, etc. What do you think?