COLOMBIA, Cartagena, low silver "imitation cob" 1/2 real, Ferdinand VII, Royalist issue (ca. 1815), very rare. Restrepo-108.2; KM-unl; Cal-unl. 0.89 gram. Choice full monogram with triangle of dots above, partially flat cross, Fine with contrasting toning, some rusty oxidation on slightly porous surfaces.