Size 54 x 30 mm.
Thickness 2 mm.
Obverse
13 for 13th class
関機 - Engine
reverse
2603 - 1943
陸軍航空整備学校 - Army Aviation Maintenance School
卒業記念 - Graduation Commemorative
Engraved
美濃德彌 - Tokuya Mino
Marked 純銀 - pure silver.
Thickness 2 mm.
Obverse
13 for 13th class
関機 - Engine
reverse
2603 - 1943
陸軍航空整備学校 - Army Aviation Maintenance School
卒業記念 - Graduation Commemorative
Engraved
美濃德彌 - Tokuya Mino
Marked 純銀 - pure silver.