n. An inscription in which a certain date or epoch is expressed by the numeral letters contained in it, each letter being counted according to its independent value, as in the motto of a medal struck by Gustavus Adolphus in 1632: “ChrIstVs DVX; ergo trIVMphVs” (C + I + V + D + V + X + I + V + M + V—that is, 100 + 1 + 5 + 500 + 5 + 10 + 1 + 5 + 1000 + 5 = 1632).