Watch List notes:

Potosi, Bolivia, cob 8 reales, (1652)E transitional Type IV. S-P37; KM-A20.4; CT-432. 24.68 grams. Solid flan with bold inner details despite some surface corrosion and small lacuna (as made), toned VF otherwise. One of only two known specimens of this die variety, according to Mastalir. Pedigreed to the Roberto Mastalir collection, #IV.1-A.ed(1)2 in his book (page 112), and pedigreed to the Stack's Bowers & Ponterio auction of November 2012, with original lot-tag #10073. ($500-750)