Watch List notes:

Potosi, Bolivia, cob 2 reales, (1)639TR, very rare. S-P27; KM-14a; Cal-unl. 6.87 grams. Bold full 3 of date following by long tail of 9 (easily mistaken for a 7, neither date listed in Calico in any case), bold full mintmark, good full shield and cross on a compact flan, VF with black area on part of edge.
($300-$450)