Thank you for viewing. This is a set of a Showa retro Kato Kogei Potato-kun potato coffee cup. I am selling it to organize my tableware. It was purchased about 40 years ago. I remember using it a few times. It has a unique potato shape with a face, and is made of ceramic. It seems to be a product manufactured and sold around the Showa era to the early 90s. Kato Kogei went out of business in 2015, and it seems that the same items are no longer manufactured or sold. For those who understand that this is a used item.