This is a limited edition Goshu-in (castle stamp) sold by the Sawayama Castle Study Group in Hikone City, Shiga Prefecture, Japan. This is an event-exclusive Goshu-in, "Dai-ichi-daiman-daikichi & Kuyomon version," sold at the "Traveling! Castle EXPO in Shiga & Lake Biwa 2025" held on November 8, Reiwa 7 (2025). There are differences in the stamp type and position. The calligraphy is by Master Kitchuson Matsumiya, a calligrapher from Taga, Inukami District. Dimensions: 14.8 cm (height), 10.5 cm (width) Please refrain from purchasing if you are looking for a perfect item, as it has been stored at home.