The mark consists of the word "XiP", in which the letters X and P are capitalized and the letter i is written in lower case, all in a sans serif typeface, with the X representing one hallmark of the mark according to a specific graphic form with the right-hand legs of the X being vertically separated from one another and displaced both laterally and vertically from the vertex of the left-hand legs, wherein the letters X, P, and the stem of the lower case i may be presented in one color and the tittle of the lower case i presented in a contrasting color, and different combinations of colors may be used.