As in their home page mdchachi-san linked, Kinboshi was established in March, 1870. The company still exists, and December 1949 is the time the company name changed from the former one 金星 to the present one キンボシ株式会社. Their main products are agricultural machines and implements now. (Incidentally, I checked their home page and confirmed that there's edged tools in their products before I posted my initial reply.)
創業 :明治3年3月
設立 :昭和24年12月
刃物・化成品等の製造及び卸販売。