Japanese Army Pilot Badges made by Koyano Watch Shop/下士官用操縦徽章古谷野時計店

Engraved

武市篤 - Takechi Atsushi

marked 純銀 - pure silver.

Original case.

下士官用操縦徽章 - Non-commissioned Officer's Pilot Badge

古谷野時計店 - Koyano Watch Shop Shimodate city, Ibaraki Prefecture