El Salvador, 1/2 real, R-in-beaded-circle countermark (Type IV, 1862) on a Guatemala 1/2 real 1861 R. KM-83. 1.39 grams. Nearly full countermark (the R bold) on a lightly worn host (VF) with full details except for flat area on reverse opposite the countermark, nicely toned all over.
($250-375)