Brown (1996) notes such features as "a bulging forehead, hooked beak-like nose, a jutting chin and predominant black color" as typical of Nuxalk Thunder masks. They were worn at Kusuit ceremonies and originally were decorated with tufts of eagle down, and twigs interspersed with cedar bark strips. Thunder is the most powerful of the Kusuit beings and its dancers summoned other masked performers representing different spirits at life passage rituals.
Label in the interior of mask that reads as follows: " Photographed and Authenticated by Bill Holm,/81. Identified as Bella Coola C. 1875."