Kazuo Hozumi, Illustrator famous for the picture book "Ivy Boy" Limited edition mug with an Ivy Boy design I believe it's from about 25 years ago. I used to have a VAN shop, so it was kept in the display case of the store. It's very rare now, and it's the type shown in the two images. I'm also selling a different color and design in a separate listing. I'll sell it to someone who appreciates its value.