El Salvador, 1 real, "RS" and "1-R" countermarks (ca. 1868) on obverse of a France 50 centimes, Napoleon III, 1867-A, very rare. Brunk-868. 2.43 grams. Bold VF countermarks on Fine host coin. See Brunk's World Countermarks on Medieval and Modern Coins (1976), p. 68, #868.
($100-150)