Watch List notes:

Seville, Spain, cob 4 escudos, Philip IV, assayer R (1640s), NGC AU 58.Cal-396; KM-107.2.13.47 grams.Bold full shield and (slightly off-center) cross-and-tressure with very bottoms of final two digits of date visible, bold denomination IIII to right and clear mintmark-assayer S-R (tiny letters) to left, traces of dark sediment in crevices.
($2000-3000)