Watch List notes:

Brazil, 600 reis, crowned-600 countermark (1663) on a Potosi, Bolivia, cob 8 reales, 1652E post-transitional (Transitional Type VIII/B), 1-PH-6 at top, very rare, NGC VF details / saltwater damage, c/s XF standard, Mastalir Plate.Gomes-4.01; Russo-12.25.87 grams.Bold and full countermark at top of full cross with bold date below and mintmark to left, one full pillar (left) above full waves with bold date and assayer and second mintmark, full 1-PH-6 at top, broad flan with some flat spots but nicely toned, the noted surface corrosion very light, rather choice overall.With photo-certificate, pedigreed to the UBS auction of March 2007 (lot 78), and Plate Coin on p. 220 of Roberto Mastalir's The Great Transition at the Potosi Mint 1649-1653, The 1652 Transitional 8 Reales (2015).
($500-750)