Size 21 mm.
		
		
	
	
		 
	
満蒙學術調査研究團 - Manchuria and Mongolia 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/
		 
	
			
			満蒙學術調査研究團 - Manchuria and Mongolia 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/
