Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer C, rare, ex-"Americas." S-P16; KM-8. 6.82 grams. Full assayer, good full shield and cross (the latter off-center), bold VF with deep toning, full king's ordinal III. This coin and the next lot were the "discovery coins" that Louis Hudson used to announce the existence of this assayer C in the early 1980s, as documented on three accompanying tags in his handwriting. Pedigreed to the "Americas" collection (Kagin's auction of August 1983, lot #1112).
($150-225)