Watch List notes:

MEXICO. 8 Reales, 1760-Mo MM. Mexico City Mint. Charles III. PCGS Genuine--Cleaned, AU Details.
KM-105; Cal-1073; Gil-M-8-37. Bright silver surfaces host faint iridescent tone, while the reverse is dominated by powdery dark cobalt blue coloration. Close examination yields minor evidence of a past cleaning, but this example is nonetheless an excellent presentation of the issue.

Estimate: $200 - $300