Tokorozawa Army Flight School Pilot Graduation Commemorative Watch Fobs/所沢陸軍飛行学校操縦生徒卒業記念章

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所沢陸軍飛行学校 - Tokorozawa Army Flight School

第一期操縦生徒卒業記念 - 1st Class /Term/ Pilot Graduation Commemorative

 

Potential owner of such watch fob.

Source.

 

Another example.

 

About the owner https://asiamedals.info/threads/two-japanese-pilot-badges-of-the-nomonhan-incident-veteran.27087/

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皇紀二五九六年 - 1936

所澤陸軍飛行學校 - Tokorozawa Army Flight School

第五十八期 - 58th Class

操縦學生 - Pilot Cadet/Student