Watch List notes:

Impressive clump including one Mexico City, Mexico, cob 8 reales, Philip IV, assayer not visible. KM-45. 213 grams, 3-1/2" x 3-3/4" x 2-1/2". A perfect size and display with several inches of an oxidized round spike attached to large pieces of coral and other white encrustation but also with one solid and intact coin (darkly toned as uncleaned) clinging to the side with full cross-lions-castles showing prominently, all very stable, the ultimate shipwreck collector's paperweight. From: Concepcion, sunk in 1641 off Hispaniola
($350-500)