8 Reales - Felipe IV

Felipe IV never visited the Americas, yet the Lima mint operated under constant pressure from the crown to maximize silver output from Andean mines during his reign — pressure that directly compromised quality control. In 1649, a major fraud scandal at the Lima mint was uncovered: assayers had been systematically debasing coinage well below the mandated fineness for years. The culprits were prosecuted, but the institutional rot took time to fully correct, and pieces struck in the years immediately following carry an uneven production history as the mint rebuilt its assaying protocols.

The 1659–1660 window sits just before Lima's cob coinage was supplanted by the milled series — making late macuquina issues from this period transitional in the broader story of Spanish colonial minting reform.