A letter copied by the sender, and mounted in later age on a hanging sroll; in Japanese description as "sha (jihitsu)".
Tani, Kanjō or Kanjo Tani (1837–1911)
<bdi><a href="https://en.wikipedia.org/wiki/en:Waseda_University_Library" class="extiw" title="w:en:Waseda University Library"><span title="Japanese university library">Waseda University Library</span></a>
</bdi>