Obverse
Symbol 〒 https://asiamedals.info/threads/symbol-of-japanese-post-yubin-maku-and-its-history.24108/
reverse
逓信省 - Ministry of Communications.
Original description of the badge.
逓信省 - Ministry of Communications
勤續章 - Long-service Badge
女子用 - For Women
Reverse
逓信省 - Ministry of Communications.
Original description of the badge.
Original case.
Originally badge was sewed to the lodgement.
逓信省 - Ministry of Communications
勤續章 - Long-service Badge
男子用 - For Men
Ink stamps on the edge.