Watch List notes:

Mexico City, Mexico, cob 8 reales, Charles II, assayer not visible, encrusted (as found), ex-Fisher. 26.78 grams. Curious square shape with just enough visible detail to attribute behind a dark veneer of green and gray crust, good weight, desirable early provenance. With original tag and (small) Treasure Salvors certificate #2180 from 1971 hand-signed by Mel Fisher. From: Spanish 1715 Fleet, east coast of Florida
($200-300)