African Maasai shield with decoration - Tanzania - 20th Size: 70 cm high and 45 wide. Pastoralist Maasai from the grasslands of southern Kenya and northern Tanzania used such shields in warfare, hunting, and rites of passage. A buffalo hide sewn onto a wooden frame is the convex elliptical canvas onto which an artist traced rich polychrome geometric patterns: two large crescents symmetrically positioned on either side of a central vertical band composed of alternating triangles. The motifs identified the owner's position within a complex lineage system. Called sirata, many of these symbolic motifs have fallen into disuse and are poorly understood by contemporary Maasai. Several elements relate this shield to a proven warrior herder. This prestigious sign is conferred only with the permission of a high-ranking chief.