^Lot 1210 Cartagena, Colombia, cob 1/2 real, no assayer, mintmark NR below monogram (1626-1630), unique and un

Cartagena, Colombia, cob 1/2 real, no assayer, mintmark NR below monogram (1626-1630), unique and unlisted variety. Restrepo-unl (M17 for type); Cal-unl (Type 158); KM-unl. 1.51 grams. Bold full cross and monogram, the latter with faint but certain mintmark NR below, XF details with light surface corrosion and small dark patches. The attribution of this first-known example to Cartagena is based on several factors: First, the lions and castles are NOT transposed; second, the NR mintmark is already known for 1/2R of this mint, but placed as N to left and R to right of the monogram; and third, a known example with E-C below monogram has the same inner ring within the border of dots on reverse. It begs for more study from a specialist collector!