While currently being marginalized by pressure from Islamic conventions concerning the figurative in art, Mende society was originally controlled by the Sande group. They were charged with responsibility for a sacred medicine known as halei, which was bestowed by deities upon the Mende and their close neighbours, the Gola. The power of halei was displayed during prolonged “Now” dancing masquerades, which were performed using these masks and long, dark costumes, although the actual secrets of halei were never divulged. There were various levels of Sande initiation, each with its own mask. The more ornate the mask, the higher the grade. Once made and endowed with magic through strategic application of oil and halei materials, the mask stays with the owner until she retires, dies, or is promoted.

These masks are rare and beautiful pieces of socially important African art, and this is a very unusual and desirable example of the genre.