Proof Pattern Half-Real, 1848, struck in silver at the Popayán mint, milled edge (cf.KM.110 (Bogotá); Restrepo, C154.179 and C154.180.1), this type not struck for regular use until 1850 and then only at Bogotá (with the exception of Restrepo's anomalous 1862 over 48 piece), medium gray deep mirrorlike surfaces and sharp rims, extremely rare, choice Proof

Details
Proof Pattern Half-Real, 1848, struck in silver at the Popayán mint, milled edge (cf.KM.110 (Bogotá); Restrepo, C154.179 and C154.180.1), this type not struck for regular use until 1850 and then only at Bogotá (with the exception of Restrepo's anomalous 1862 over 48 piece), medium gray deep mirrorlike surfaces and sharp rims, extremely rare, choice Proof