Watch List notes:

Potosi, Bolivia, cob 8 reales, (16)52E transitional Type IV, ex-Mastalir collection. S-P37; KM-A20.4; CT-432. 17.28 grams. Darkly toned and heavily corroded on both sides but with clear full pillars and shield (and full crowns above both). According to Mastalir, this is one of only two specimens known of this die variety. Pedigreed to the Roberto Mastalir collection, #IV.1-A.db(1)2 in his book (page 107), with photo-certificate. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($125-200)