明治25年生、名操、山本純民の弟、花瓶制作を主とし、現在原型、仕上を専にす、岡崎雪声に師事した着色技法にその技を揮う
鋳金家協会員、…
（「鋳金近代史稿」より）
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YAMAMOTO Kozan Biographie
Born in 1892, younger brother of the famous master craftsman YAMAMOTO Junmin.
He mainly made vases and now specialises in prototype and finishing.
He is a member of the Society of Metal Casting Artist
(Quoted from the manuscript of “The Modern History of Metal Casting”)