浅井忠書簡河合辰太郎宛

[酒井忠讜　三郎五郎 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[酒井忠讜　三郎五郎 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

藤井甚太郎書簡　金子堅太郎宛

NDL Digital Collections

NDL Digital Collections

[浅井七十郎　宮原謙蔵 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

藤井甚太郎書簡　趙欣伯宛

NDL Digital Collections

NDL Digital Collections

[小河真文（吉太郎）　一良 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

釜屋忠道書簡　金子堅太郎宛

NDL Digital Collections

NDL Digital Collections

石黒忠悳書簡　金子堅太郎宛

NDL Digital Collections

NDL Digital Collections

松井慶四郎書簡　金子堅太郎宛

NDL Digital Collections

NDL Digital Collections

河井庫太郎

National Institute of Japanese Literature

Collectors'Seals Database

河井庫太郎

National Institute of Japanese Literature

Collectors'Seals Database

[亀井昭陽（昱太郎）　〔亀井小琴〕 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

三井高棟書簡　金子堅太郎宛

NDL Digital Collections

NDL Digital Collections

永井柳太郎書簡　有馬頼寧宛

NDL Digital Collections

NDL Digital Collections

〔井原喜代太郎書簡〕

Saga Prefectual Library

Saga Prefectural Library Database

[小河原雨塘　太山 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[亀井昭陽（昱太郎）　太仲〔臼杵鹿垣〕 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[河田景与　半九郎 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[村井玄斎　本庄直太郎〔星川〕 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[井上復斎（千太郎）　伊藤千蔵 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[亀井昭陽（昱太郎）　武名道郁 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[山岡鉄舟（鉄太郎）　桜井政義 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[三郎太郎　さの与市 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections

[伊藤圭介　浅井修真 宛書簡]

Tokyo Metropolitan Central Library

Tokyo Metropolitan Library Edo-Tokyo Digital Collections