I believe these items are from around 40 to 50 years ago. This is a set of 5 teacups, 5 small bowls, and 2 sake bottles. There is no teapot. There is a mark that says "Kinzan," but it is not certain whether it is Arita-yaki or Imari-yaki. As shown in the photos, the sake bottles have some discoloration. The teacups have some cratering. Overall, they appear to be slightly discolored, and some discoloration remained even after washing. The sake bottle holds 138ml. I will pack them carefully in a separate cardboard box for shipping.