GUIDE
Where can I get a kofun-in?
Kofun-in is a new series Hiroshima History Trail is preparing, following on from our castle goshuin (in preparation as of October 2026), tracing the great ancient burial mounds of the Chugoku–Shikoku region, starting with Mitsujo Kofun.
Frequently asked questions
Q1.Can I buy a kofun-in (ancient burial mound stamp) yet?
The series is currently in preparation. Once released, it will be available in our online shop (under the “Kofun-in” tab on the stamps page).
Q2.How is it different from goshuin?
Goshuin trace the story of a castle; kofun-in trace the story of a kofun (ancient burial mound), an even older layer of history. Both use the same paper-crane recycled washi.
Q3.How many kofun are covered?
The first release is planned around Mitsujo Kofun and others (as of October 2026). More sites will be added over time — see our News section for the latest.
Q4.Will it only be sold online?
Once released, it's planned to be available both online and at select stockists, the same way our goshuin are.