Late war watch fob. Very light because of the hollow construction.
Size 60×48.3 mm.
Thickness 3.8 mm.
Weight 4.8 g.
Obverse
13甲飛 - 13th A[-Class] Flight [Trainee]
土空 - Earth and Sky
reverse
2604 - 1944
第十三期 - 13th Class
甲種飛行豫科練習生 - A-Class Trainee of Flight Reserve Trainee...
13th class a-class yokaren program watch fob
hikō yoka renshū-sei
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甲種飛行予科練習生卒業記念章
第13期甲種飛行予科練習生卒業記念章
第十三期甲種飛行予科練習生卒業記念章