The mark consists of a three-dimensional lamp comprising: (1) a square base formed with two planar, square members, wherein the upper member's height is less than the lower member's height, and the upper member is centered upon, and in the same orientation as the lower member; (2) a body portion formed by two intersecting, orthogonal rectangles extending from just above the base to just below the shade, with a socket for a light bulb located interior to and just below the top of the intersecting rectangles, configured such that the light bulb extends downward; (3) two pairs of parallel square rings, with the first pair being located approximately a quarter of the distance from the body top, and the second pair being located approximately a quarter of the distance from the body bottom; and (4) a cylindrical shade located above the body portion. The matter in broken lines indicates that such matter is not claimed as a feature of the mark.