—Par of exchange. In mercantile law. precise equality or equivalency of any given sum or quantity of money in the coin of one country, and the like sum or quantity of money in the coin of any other foreign country into which it is to be exchanged, supposing the money of such countty to be af the precise weight and purity fixed by the mint standard of the respective countries. Story, Bills, hae Murhy v. Kastner, 50 N. J. Eq. 220, 24 Atl. 564; lue Star S. S. Co. v. Keyser (D. C.) 81 Fed. 510. The par of the currencies of any two countries means the equivalence of a certain amount of the currency of the one in the currency of the other, supposing the currency of both to be of the precise weight and purity fixed by their respective mints. The exchange between the two countries is said to be at par when bills are negotiated on this footing; 6. e., when a bill for £100 drawn on London sells in aris for 2,520 frs., and vice versa. Bowen, ol. Econ. 284.