Watch List notes:

BOLIVIA, Philip III (1598-1621) or later, silver cob eight reales, (25.99 g), c.1619-1640s, Potosi mint, assayer T, obv. Arms of Spain, with P to left over + over T, uncertain [VIII] to right, rev. arms of Castille and Leon, date off flan, (cf.KM.10 - 19a). Fine and rough.

Ex D.Simpson Collection.

The assayer T continued until the late 1640s under Philip IV.