These Tiwi Armbands are used in Tiwi Pukamani funerary ceremonies. A similar pair can be seen at the Pitt Rivers Museum in Oxford. Highly decorated in rich pigments and ochres, these are fine and old examples.   'Among many Australian aboriginal peoples, puberty is a time for initiation into secret rituals of society. The novice leaves childhood and prepares to become a spiritual being. The ini…