Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip IV, assayer TR (late 1630s).S-P27; KM-19a.26.76 grams.VF with an unusually wavy but thick planchet and thus poorly struck with partial shield and cross, rather nice full mintmark and assayer monogram, a few spots of dark encrustation.Pedigreed to the Arturo Rosenheim collection.From: Shield Type
($125-200)