The flag to be known as the official flag of the commonwealth of Pennsylvania shall be of blue, same color as the blue field in the flag of the United States, and of the following dimensions and design; to wit, The length, or height of the staff to be nine feet, including brass spearhead and ferrule; the fly of the said flag to be six feet two inches, and to be four feet six inches on the staff; in the center of the flag there shall be embroidered in silk the same on both sides of the flag the coat of arms of the commonwealth of Pennsylvania, in proportionate size; the edges to be trimmed with knotted fringe of yellow silk, two and one-half inches wide; a cord, with tassels, to be attached to the staff, at the spearhead, to be eight feet six inches long, and composed of white and blue silk strands.