Mark N could be found on Sacred Treasure Orders, Showa-28 and Honor medals.
N stands for Nippon / 日本
In turn 日本 stands for
日本勲章製作株式会社
日本 - Japan
勲章 - Medal
製作 - Manufacturing
株式会社 - Corporation
Japan Medal Manufacturing Co., Ltd. was established on October 17, 1928.
The registered capital of the company was equal to 500,000 yen.
Unpunched marks.
Inside the cases with medals marked N one could find (from time to time) a paper wrapper with the name of the manufacturer.
日本勲章製作株式会社 - Japan Medal Manufacturing Corporation
昭和四年参月 - March 1929
Another date that could occur on the wrapper is
昭和四年壹月 - January 1929
N stands for Nippon / 日本
In turn 日本 stands for
日本勲章製作株式会社
日本 - Japan
勲章 - Medal
製作 - Manufacturing
株式会社 - Corporation
Japan Medal Manufacturing Co., Ltd. was established on October 17, 1928.
The registered capital of the company was equal to 500,000 yen.
Unpunched marks.
Inside the cases with medals marked N one could find (from time to time) a paper wrapper with the name of the manufacturer.
日本勲章製作株式会社 - Japan Medal Manufacturing Corporation
昭和四年参月 - March 1929
Another date that could occur on the wrapper is
昭和四年壹月 - January 1929