Watch List notes:

Dominican Republic, gilt copper proof piefort pattern 100 pesos (off-metal strike), 1980, Enriquillo, pillar dollar reverse, NGC PF 67 Ultra Cameo. KM-cf XP6. Rich gold color as thickly gilt (XRF tested at 5% gold) with some cloudiness in fields but nice frosty details, including the bust of the Taino cacique Enriquillo, from an unofficial pattern issue that was struck with two reverses (the other with a Santo Domingo 1500s pillar design, per the KM listing) with an estimated total of 40 struck, unlisted in piefort for this metal, one of just two in the NGC census (but on different lines), the other PF 68.

Estimate: $400 - $600