See also badge made by the same workshop with a similar design https://asiamedals.info/threads/hyogo-prefecture-education-society-merit-badge.26388/
Obverse
功勞章 - Merit badge
Reverse
大阪府 - Osaka prefecture
聯合青年團 - Youth League
Marked
SBD (for Shobido workshop, Osaka https://asiamedals.info/threads/mark-on-japanese-orders-who-and-when.25816) and pure silver.
Obverse
功勞章 - Merit badge
Reverse
大阪府 - Osaka prefecture
聯合青年團 - Youth League
Marked
SBD (for Shobido workshop, Osaka https://asiamedals.info/threads/mark-on-japanese-orders-who-and-when.25816) and pure silver.