Watch List notes:

Potosi, Bolivia, cob 8 reales, 1644TR, denomination as vertical oo, very rare.S-P29a; KM-19a; Cal-1473.26.44 grams.Full P-dot-TR and double-ringlet denomination flanking full but doubled shield, full but somewhat flat cross with all four digits of date fully visible but with the two 4's rather offset due to doubling, nicely toned AVF for the type with crude edge as made.
($200-300)