Watch List notes:

Potosi, Bolivia, cob 4 reales, 1628 assayer T/P, quadrants of cross transposed, very rare, NGC AU 53, finest and only example in NGC census. S-P24; KM-unl; Cal-unl. 13.36 grams. Choice full shield and cross, the latter off-center enough to enable a bold full 28 of date (confirmed by "hunched over" lions in incorrect quadrants of cross, very unusual this late), full dot-P-dot-T/P (decidedly NOT P/T, first we have seen), nicely toned. NGC #6444960-011.
($250-500)