The mark consists of an oblique perspective view of one spheric face of a lozenge-shaped rondelle bead and near-side portions of the peripheral side edge. The face bears a capital "H" letter in white. The remaining portions of the face transition, from top to bottom, from red to blue to green and in which there is gray-shade imaging representing electric-utility power high voltage transmission lines and connections. The face further includes a bright white spot simulating a reflection of a bright source of light above the face. The portions of the peripheral side edge which are in view include the colors blue, white and green.