SKETCH BOOK Volume 3. from 25|8|33 to 5|10|33 at Yokosuka Naval Shipyard
Yuzuru Hiraga Digital Archive | Kashiwa Library
SKETCH BOOK Volume 2. from 25|7|33 to 3|8|33 at Yokosuka Naval Shipyard
Yuzuru Hiraga Digital Archive | Kashiwa Library
東京帝国大学 明治33年4月
小川一眞
Digital Archive. University Archives | The University of Tokyo Archives