Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip II, assayer M/R to left, very rare, ex-Ugaz. S-P2; KM-3.2; Cal-unl. 6.21 grams. Choice full details (including most of legends and crown) despite obvious wear (Fine with contrasting toning), the P-M/R to left and denomination ii to right very bold and clear, a prime example of Stallard obverse Die A that was made for assayer R but apparently never used until assayer M. Pedigreed to the Jorge Ugaz collection.
($250-375)