These are KINTO plates. There is some soiling on the back (see photo 3). Product details can be found here: https://kinto.co.jp/collections/ceramic-lab/products/29541 This is a set of 2. Retail price is 4180 yen. Shipping will be via Rakuraku Mercari. I am also selling other items from the same series, so please take a look. https://jp.mercari.com/user/profile/602467904?status=on_sale