Japanese laquerware coasters vintage

This appears to be an octagonal lacquerware tray or dish produced by Otagiri, a Japanese brand known for its handcrafted ceramics and giftware. The label on the item specifies it is lacquerware and provides specific care instructions: Cleaning: Wipe with a soft, damp cloth. Maintenance: Following these instructions helps preserve its "luster and beauty." Lacquerware is a traditional craft where multiple layers of resin (lacquer) are applied to a base, often wood or plastic, to create a durable and glossy finish. Due to the delicate nature of this finish, it should not