The "lightning" pattern of this blanket represents an extraordinary optical invention. At first glance, the five sections, demarcated by four horizontal bands, appear to run vertically uninterrupted. Closer inspection and comparison of the sections reveals an asymmetry in the matched lightning patterns. The Navajo weaver sought to create color harmonies through the vertical interplay of variations in "bolt" colors and widths, rather then reinforcing these differences by symmetrically mirroring the adjacent section. The horizontal bands and the subtle play of the bright colors expose an artistic freedom unique in wedge weave and eyedazzlers from the transitional period of 1875-1900.