6400 Réis - José I Bahia and Rio de Janeiro Mints

The 6400 réis was the largest gold denomination in colonial Brazil and the workhorse of transatlantic trade during José I's reign — these pieces moved bullion from Minas Gerais to Lisbon in quantities that made Portugal briefly the wealthiest crown in Europe. The Bahia and Rio de Janeiro mints operated under distinct administrative oversight, and the two series carry different mint marks that collectors treat as separate issues despite sharing the same royal authority.

The Marquis of Pombal's sweeping fiscal reforms after 1755 directly affected production schedules at both facilities, particularly following the Lisbon earthquake, which redirected royal attention and treasury resources for several years.