20th century hand-carved Dao mask from Vietnam

Description

20th century hand-carved wood Ka Dong mask with crape paper and animal fur from Dao people, Vietnam. 13x8x4.5
The Dao comprise two groups, who speak the Mien and Mun dialects. In religious rites of the Mùn group, there are always Ka Dong men wearing masks with two horns. They are mysterious men representing deities in the Dao rituals.
Ka Dong men are invited from the forest to attend rituals such as the Maturity ceremony and the Welcoming a new born baby ceremony. Their clothes are in tatters. Each man has a bag, a crossbow, and an ugly mask. During their history of migration, the Dao often encountered wild animals, demons, ghosts, and natural disasters that harmed people in the community, so they started wearing ugly masks so the demons would not annoy them.
The Ka Dong mask is carefully crafted. Each Dao village has one or two Ka Dong masks which only certain people are allowed to touch or wear.