Potosi, Bolivia, cob 8 reales, 1652E post-transitional (transitional Type VIII/B), 1-PH-6 at top, unique subtype. S-P37a; KM-21; CT-434. 21.75 grams. Broad flan with bold VF+ details on both sides (also nice toning) despite localized surface corrosion as from unspecified salvage, with all three dates full and bold, choice but slightly doubled pillars. Mastalir highlights this coin is being a unique subtype with inverted A for V in SVL and inverted V for A in TRA in motto. Pedigreed to the Roberto Mastalir collection, #VIII.1-B.ca.x(3)1 in his book (page 230). ($300-450)