Watch List notes:

Potosi, Bolivia, cob 4 reales, 1678 E, retrograde denomination 4 (rare), ex-Sellschopp (plate). S-P37b; KM-unl (25 for type); Cal-unl. 14.34 grams. Large flan (in fact overweight) with one bold pillar (off-center) and most of cross, two bold dates and assayers, full denomination in retrograde, toned XF with flat peripheries, light stain from former sticker on cross side that typifies Sellschopp coins (desirable pedigree). Pedigreed to the Jorge Ugaz collection and to the E.A. Sellschopp collection (Swiss Bank Corp. auction of September 1988, lot 786, plated in catalog).
($350-500)