Size 21 mm.
満蒙學術調査研究團 - Manchuria Academic Research Group
Marked 純銀 - pure silver and Tamaya workshop mark 玉 https://asiamedals.info/threads/badges-watch-fobs-and-medals-manufactured-by-tamaya.26703/
first scientific expedition to manchukuo
first scientific expedition to manchukuo badge
japanese puppet state badge
manchukuo badge
manchukuo badge with camel
manchuriaacademicresearchgroupbadge
tamaya workshop
團満蒙学術調査研究団章
東京玉屋銀座
満蒙學術調査研究團
満蒙學術調査研究章