https://www.militaria.co.za/nmb/topic/26165-attention-mantetsu-owners-a-survey/?do=findComment&comment=574814
Attention Mantetsu Owners: A Survey - Military Swords of Japan - Nihonto Message Board
Calling all Mantetsu Owners: I'm doing a very informal survey of serial numbers on Mantetsu blades. I'd like to see if there is a progression of the katakana...
a surveymilitary swords