Envelope addressed to Eitaro Mukai (a.k.a. Ikibi Mukai) by Takuboku Ishikawa

Yomigaeri : mukai ikibi dai1 shishuu

Postcard addressed to NAKAI Baien (elder sister of NAKAI Sotaro)

[野田笛浦（希一）　永井新太郎 宛書簡]

Postcard addressed to the poet Genzo Sarashina by the famed author Osamu Dazai

木子清敬宛阿部今太郎書簡封筒

永井柳太郎書簡　金子堅太郎宛

永井柳太郎書簡　金子堅太郎宛

永井柳太郎書簡　有馬頼寧宛

A letter from Hara Tadayuki to Watanabe, Tanaka, Nagano, Nagata and Ihara

書簡/永井柳太郎拓務大臣より白瀬矗宛