See also https://asiamedals.info/threads/1930-ministry-of-education-commendation-pennant.26821/
Two variations of this badge is known.
1st variation (marked 純銀).
Photos courtesy of the owner.
Height 26.6 mm.
Width 18.1 mm.
Weight 11.7 g.
Obverse
青年訓練 - Youth Training
功労章 - Merit Badge...
