永井久一郎像

永井久一郎像

Edo-Tokyo Museum

Tokyo Museum Collection

永井恆像

Edo-Tokyo Museum

Tokyo Museum Collection

永井荷風像

Edo-Tokyo Museum

Tokyo Museum Collection

永井松三像

Edo-Tokyo Museum

Tokyo Museum Collection

久重書状（永井文書）

ADEAC: A System of Digitalization and Exhibition for Archive Collections

久保貞次郎肖像

真岡市教育委員会

Tochigi Digital Museum "SHUGYOKU"(Culture Resources)

永井荷風像(少年時)

Edo-Tokyo Museum

Tokyo Museum Collection

永井荷風像(少年時)

Edo-Tokyo Museum

Tokyo Museum Collection

永井荷風像(青年時)

Edo-Tokyo Museum

Tokyo Museum Collection

永井荷風像(青年時)

Edo-Tokyo Museum

Tokyo Museum Collection

本學書記官永井久一郎乘馬飼養ニ付届ノ件

The University of Tokyo Archives

UTokyo Academic Archives Portal

大久保一翁肖像

Edo-Tokyo Museum

Tokyo Museum Collection

大久保一翁肖像

Edo-Tokyo Museum

Tokyo Museum Collection

（永井鉄治郎蔵書）

National Institute of Japanese Literature

Collectors'Seals Database

里井圓次郎肖像

ADEAC: A System of Digitalization and Exhibition for Archive Collections

島津久哲書状（永井文書）

ADEAC: A System of Digitalization and Exhibition for Archive Collections

久野成七郎肖像写真

Meiji Gakuin Historical Museum

ADEAC: A System of Digitalization and Exhibition for Archive Collections

永井荷風像(断腸亭にて)

Edo-Tokyo Museum

Tokyo Museum Collection

永井雄太郎出勤届

The University of Tokyo Archives

UTokyo Academic Archives Portal

「久まつ 岩井粂三郎」

The Tsubouchi Memorial Theatre Museum, Waseda University

The database of ukiyo-e

「久まつ 岩井粂三郎」

The Tsubouchi Memorial Theatre Museum, Waseda University

The database of ukiyo-e

永井

National Institute of Japanese Literature

Collectors'Seals Database

文久永宝

Fukuoka City Museum

Fukuoka City Museum Collection Database

文久永宝

Fukuoka City Museum

Fukuoka City Museum Collection Database