Pre-Columbian Gold Medallion. Hammered slender circular disk, with pinched decoration to edge, and pressed image of a frog to center, with a partly torn /ripped holes. The medallion slightly concave. Sold together with a lined jewelry case, and a book, edited by Antonion Panesso, "El Dorado," Banco de la Republica, Bogota, 1981. {Approximate diameter of medallion: 3 1/4 inches.}. {Approximate weight of medallion: 12 grams.}. {Approximate dimensions of book: 9 1/2 x 7 1/2 inches.}. Condition: Various creases, crimps, rough edges; the hole jagged to medallion. Please note we do not test such objects for gold purity.