The mark consists of a prospective image of three 3-dimensional shapes: a yellow sphere, a green parallelepiped and a blue extrusion of a shape along an arc. The sphere is embedded into the parallelepiped's largest face, penetrating through both large faces of the rectangular parallelepiped. The sphere's center is along the line connecting the centers of the smallest faces of the parallelepiped, at the intersection of two construction lines bisecting the two corners of the parallelepiped's largest face along the shortest edge of the largest face The extruded shape is penetrating through the parallelepiped's middle sized faces; and it is visible on both large faces; one end of the arc is at the corner of the parallelepiped's largest face farthest from the sphere; and the other end of the arc is at a point along the other long edge of the parallelepiped's largest face at a point equal to the shortest edge of the parallelepiped's largest face.