〔葉書〕 古在由直宛
東洋館（哈爾浜市）
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
戸田経彦
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
〔長岡□郎□〕
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
中川久知
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
中村留二
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
中村彦
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
S. Nasu〔那須皓〕
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
西門義一
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
西山政猪
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
仁田直
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
八田吉平
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
服部宇之吉
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
服部実
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔葉書〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
〔書簡〕 古在由直宛
原鉄五郎
Digital Archive. University Archives | The University of Tokyo Archives
