Africa | Buffalo/Ox mask. Bijogo peoples. Guinea-Bissau | Late 19 to mid 20th century | Wood, cow horns, glass, plant fiber, paint | The Bijogo classify people not just by physical age, but in combination with personal and communtiy behavior linked to initiation. Different bovine masks and costumes mark certain of the stages of initiation. Dugn'be, "the ox raised in the village" is worn by a physically mature young man .