Gold Coin (Koban) Minted in the Keichō Era
Found off the coast of Ōshima Town, Tokyo, Edo period, 17th century
Japanese Archaeology and Special Exhibition (Heiseikan) Japanese Archaeology Gallery
September 18, 2024 (Wed) - March 9, 2025 (Sun)
In February of 1957, a man harvesting shellfish about 250 meters off the coast of Tokyo’s Izu Ōshima island accidentally discovered koban coins on the sea bed. Following this incident, a total of 103 koban and 63 ichibukin, which are smaller and rectangular, were found. The reason for why these gold coins were lost at sea is still a mystery.
Designation | Name | Creation/ Excavation/ Provenance |
Period | Acquisition/ Ownership/ Accession Number |
CMT | ||
Highlight | Gold Coin ("Koban") Minted in the Keichō Era | Found off the coast of Ōshima Town, Tokyo | Edo period, 17th century | J-37245-11 | |||
Highlight | Gold Coin ("Koban") Minted in the Genroku Era | Found off the coast of Ōshima Town, Tokyo | Edo period, 17th–18th century | J-37245-23 | |||
Highlight | Gold Coins ("Ichibukin") | Found off the coast of Ōshima Town, Tokyo | Edo period, 17th–18th century | J-37246 |