WORLD COINS - JAPAN - 1 YEN - DENOMINATION ARCHIVE

Japan 1 Yen Archive

Era-based types and year-by-year research records

01 TYPE ARCHIVE

Select a Type

1955–1989Shōwa 30–64 · Young Tree Aluminum 1 Yen 1989–2019Heisei 1–31 · Young Tree Aluminum 1 Yen

02 ARCHIVE METHOD

Record Scope

Records are grouped by material/design and imperial era, then by individual year. Shōwa 1955–1989 and Heisei 1989–2019 are maintained as sibling type folders. Non-issues, in-set-only catalogue statuses and Proof records are documented separately without changing stable year URLs.