Turning to the back of the American one-dollar bill, I behold on the right side the "obverse" and on the left side the "reverse" of the Great Seal of the U.S. I pause to mention that to heraldry experts the "obverse" is the front and the "reverse" is the back of something. Why bring up heraldry experts? Because heraldry is the discipline of designing coats of arms, armorial bearings, and such things, and the Great Seal of the United States is a product of that art combined with the art of the statesman.