Artist Unknown (Yorùbá peoples, Nigeria),&amp;nbsp;Herbalist’s Staff (ọ̀pá Ọ̀sanyìn), 19th century, forged iron,&amp;nbsp;H: 61.5 cm, Diam: 17.5 cm.&amp;nbsp;Collection Mina and Samir Borro.&amp;nbsp;Image © courtesy Mina and Samir Borro