Watch List notes:

Potosi, Bolivia, cob 8 reales Royal, 1652E Transitional Type I/A, very rare, with crowned-600 countermark of Brazil (600 reis, 1663) on shield side, ex-Association (1707), Mastalir Plate Coin. S-P37; KM-RA20.1; CT-406. 25.68 grams. A world-traveling "wonder" coin on so many levels: as a Spanish colonial Royal matching Lazaro #117 on the pillars side (albeit not 100% round and with some doubling and flatness) showing the very rare Type-I Transitional design; as a countermarked piece for circulation in the Portuguese colony of Brazil (rarely seen on 1652 Transitionals, let alone a Royal); and as a multi-national passenger on board a famous British warship wreck; with nearly uncorroded surfaces nonetheless and nice toning on fields, one of the consignor's favorite coins of all time and sure to be the jewel of its next owner's collection! From the Association (1707), with certificate from the salvager, and pedigreed to our Auction #2 (lot #243), also Plate Coin #I-A.x on page 55 of The Great Transition at the Potosi Mint 1649-1653: The 1652 Transitional 8 Reales (2015), by Mastalir.
($4000-6000)