Watch List notes:

MEXICO, Colonial. Felipe IV. King of Spain, 1621-1665. AR 8 Reales (36.5mm, 24.73 g, 3h). Cob type. Ciudad de México (Mexico City) mint. Dated [16...] Mo D, struck 1621-1634. Crowned coat-of-arms / Arms within polylobe. Cf. ME 6189; BW 15.5; KM 45. Fine, some roughness.