Badge was introduced on October 3, 1935 Original description and line drawings.
#2 1st variation. Obverse 軍事功労章 - military affairs merit badge Reverse 海軍省 - Navy Ministry https://en.wikipedia.org/wiki/Ministry_of_the_Navy_(Japan) Marked 純銀 - pure silver Original case. Another example of 1st variation badge.
1st variation. Obverse 軍事功労章 - military affairs merit badge Reverse 海軍省 - Navy Ministry https://en.wikipedia.org/wiki/Ministry_of_the_Navy_(Japan) Marked 純銀 - pure silver Original case. Another example of 1st variation badge.
#3 2nd variation (different stamp + different form of catching hook). Marked 純銀 - pure silver. The easiest way to differentiate between two variations is by using obverse. Another example of 2nd variation.
2nd variation (different stamp + different form of catching hook). Marked 純銀 - pure silver. The easiest way to differentiate between two variations is by using obverse. Another example of 2nd variation.