Watch List notes:

BOLIVIA, Colonial (as Alto Perú). Felipe III. King of Spain, 1598-1621. AR 4 Reales (33mm, 11.62 g, 12h). Potosí mint. Dated 162[...] (struck 1620-1622). Crowned coat-of-arms; P/+/T to left / Arms of Spain. Cf. Menzel Po-188 (8 Reales). Sea-salvaged, ragged flan, date off flan. Fine.

Ex 1622 Nuestra Señora de Atocha wreck, inv. 85A-218314 (with ticket and certificate).