Watch List notes:

Potosi, Bolivia, cob 8 reales, 1647Z/?, rare. 27.86 grams. Choice full cross and shield, the latter with most of crown above and bold denomination 8 ("oo" vertically) to right, the Z assayer to left weak but certain (possibly punched over an earlier assayer), but best feature is the bold full 47 of the date in small digits, nicely toned VF with typical edge-splits. Ironically overweight.

Estimate: $1000 - 2000