As for today the exact owner of this mark remains unknown. Presumably mark was used by Namikawa Yasuyuki /katakana ナ reads Na/. Unfortunately, at present this hypothesis cannot be conclusively proved.
Workshop that used this mark was active during the first quarter of the XX century...
japanese medal withmarkナ
japanese order made by namikawa yasuyuki
japanese orderwithmarkナ
manufacturer of japanese medal
manufacturer of japanese ordermarkナ on japanese orders and medals
namikawa yasuyuki workshop
orderof golden kite withmarkナorderof rising sun withmarkナorderofsacredtreasurewithmarkナ