Private collection. Photos courtesy of the owner.
Obverse
練高 - Advance Course/Training
reverse
海軍航海學校 - Naval Navigation School
第二十期高等科 - 20th Advance Course Class
卒業記念 - Graduation Commemorative
操舵術練習生 - Steering Course Student
Marked
純銀 - pure silver
Obverse
練高 - Advance Course/Training
reverse
海軍航海學校 - Naval Navigation School
第二十期高等科 - 20th Advance Course Class
卒業記念 - Graduation Commemorative
操舵術練習生 - Steering Course Student
Marked
純銀 - pure silver