Watch List notes:

Madrid, Spain, cob 8 reales, 1643B, retrograde 4.Cal-1274; KM-120.27.23 grams.Bold VF with nice toning, nearly full crown above full shield with full but slightly indistinct MD mintmark (vertical) and assayer B to left, denomination dot-8-dot to right, full but doubled cross with 100% full and bold 164 of date followed by the bottom-left point of the 3, confirmed as 1643 since 1642 would have retrograde B (assayer).
($250-375)