Watch List notes:

Potosi, Bolivia, cob 2 reales, (16)23, date rendered as "(16)ZIII," assayer not visible, quadrants of cross transposed, very rare. KM-14a. 4.45 grams. Bold III of date outside of full but doubled cross, most of shield with odd "IAII" from legend (part of HISPANIARVM, somehow) shifted inward from doubling, lightly toned XF with edge loss from corrosion as from unspecified salvage.

Estimate: $250