A mask depicting a long-nosed konoha (leafy) tengu lies half- bundled in cloth.
A tengu mask like this one appears in the noh play The Tengu of Kurama. The Great Tengu of Mount Kurama, disguised as a priest, teaches martial arts to the young hero Ushiwakamaru (1159-1189).
Ushiwakamaru was the younger half-brother of Japan’s first Shōgun (military dictator), Minamoto no Yoritomo (1192-1199).