Kyogen mask

The Kyogen mask by an unknown artist depicts a bald head with a wide open mouth and raised eyebrows. The mask appears to be made of wood or another material and is dark in color. It has a serious expression with the eyes looking upwards. The mask is displayed on a wall with a ruler at the bottom for scale. A small label reads "THE METROPOLITAN MUSEUM OF ART 1926". The background is a plain wall.