 Peirce’s 1903 account of signs, then, is notable for its broader scope, relative neatness, and completeness. In it Peirce returns to the basic sign structure we gave above and by paying close attention to those elements of signs and the various interactions between them gives what seems to be an extensive account of signification, and an exhaustive typology of signs far beyond the range of his early account of the 1860s. To understand Peirce’s 1903 account, we must return to the three elements of signification, namely, the sign-vehicle, the object, and the interpretant and see how Peirce thinks their function in signification leads to an exhaustive classification of sign types.