Wall Drawing #848: A wall bordered and divided vertically and horizontally by a flat gray band into four equal parts, each divided by a curvy line. Top left, divided vertically. Left: glossy black; right: flat white. Top right, divided horizontally. Top: glossy red; bottom: flat orange. Bottom left, divided diagonally from left to right. Left: flat purple; right: glossy blue. Bottom right, divided diagonally from right to left. Left: flat green; right: glossy yellow