安井益男から安井泰逸郎への1930年12月31日付けの手紙の抜粋部分の現代日本語訳。その中で益男は、剛と稔が年賀状発送を手伝ってくれている状況を描写し、今年最初の寒い夜であると伝えている。続けて、今年の不況がビジネスにどのような影響を及ぼしているのかについても述べている。益男はまた抜粋以外のページで、旅行や思い出、共通の知人の近況について書いた泰逸郎の手紙を読んでの感想を述べている。
翻訳注：原文および英訳も掲載されている。

Letter from Masuo Yasui to Taiitsuro Yasui, dated 31 December 1930. In the letter Masuo mentions that Tsuyoshi and Minoru are helping him with New Year's greeting cards and states that it is the first cold night of the year. He continues on to describe the year's recession and how it is negatively impacting business. Masuo also shares his thoughts on reading Taiitsuro's letter about his trip, memories, and recent events of mutual acquaintances.
Translation Note: Selections from this document have been translated into modern Japanese and English.

English translation selection of a letter from Masuo Yasui to Taiitsuro Yasui, dated 31 December 1930. In the letter Masuo mentions that Tsuyoshi and Minoru are helping him with New Year's greeting cards and states that it is the first cold night of the year. He continues on to describe the year's recession and how it is negatively impacting business. Masuo also shares his thoughts on reading Taiitsuro's letter about his trip, memories, and recent events of mutual acquaintances on pages not translated.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.