Wooden, square masu (sake cup) commemorating the 150th anniversary of the end of the Boshin War. It features the Shinsengumi's character for "sincerity" (誠) engraved on it. I purchased this at the site when I visited Goryokaku Fortress a long time ago. The masu is a one-go size. I opened it for the photos, but it has never been used. - Material: Wood - Design: Square - Text: 誠 (Makoto/Sincerity) - Special Feature: 150th Anniversary - Packaging: Comes with a clear plastic cover