Watch List notes:

Potosi, Bolivia, cob 8 reales, (1652)E, Transitional Type IV/A, Mastalir Plate.S-P37; KM-A20.4; Cal-1493.24.68 grams.XF details with light surface corrosion, bold full pillars-and-waves containing dot-dot-dot at top above F-8-IIII, E-8-E across bottom, choice full shield (slightly doubled) with (A)-P-8 to left and O-E-(52) to right, nice toning, small lacuna (as made) at bottom of right pillar. According to Mastalir, this is one of only two known specimens of this die variety.Plate Coin #IV.1-A.ed(1)2 (p. 112) in Roberto Mastalir's The Great Transition at the Potosi Mint, 1649-1653: The 1652 Transitional 8 Reales (2015), also pedigreed to the Stack's Bowers & Ponterio auction of November 2012 (lot 10073).From: 1652 Transitionals
($350-500)