Cartagena, Colombia, copper "imitation cob" 1/2 real, "800" date (ca. 1815), rare, NGC Fine details / environmental damage. Restrepo-108.1; KM-unl; Cal-unl. Very crude strike with only part of the Philip monogram on obverse but full cross on reverse (Royalist issue) with some under-coin details visible as well, oxidized surfaces.
Estimate: 300 - 450 USD