Keywords: Conch helmet - Higgins Armory Museum - DSC05528.JPG Helmet embossed in the form of a conch shell awabi uchidashi kabuto Japan 1618 Made by Nagasone Tojiro Mitsumasa; signed Echizen no kuni ju Mitsumasa; Nagasone Tojiro saku Exhibit in the Higgins Armory Museum 100 Barber Avenue Worcester Massachusetts USA The museum permitted photography without any restriction both in writing and when I asked verbally I took this photograph 2011-09-24 11 26 14 Daderot Public domain Conch helmet Higgins Armory Museum Awabi uchidashi kabuto Kawari kabuto |