80 Réis - Maria I and Pedro III (Low Crown; Lisbon)

The 80 Réis coin minted in 1778 originates from a transitional era in the Portuguese Empire, specifically during the joint reign of Queen Maria I and her consort, King Pedro III. Produced at the Lisbon mint for use in the colonial Brazilian economy, these copper coins were intended to circulate as lower-denomination currency to facilitate daily commerce in the expanding colony. The use of copper for these coins reflects the imperial strategy of managing precious metal reserves while ensuring that small-scale transactions remained viable within the mercantilist system of the late 18th century.

The design of the 'Low Crown' variety represents the aesthetic standards of the period, featuring the royal coat of arms prominently on the obverse and the denomination on the reverse. These coins were produced under the standard coinage mandates issued by the Portuguese Crown to standardize currency across their global territories. While utilitarian in nature and produced in high volume to meet the demands of the Brazilian market, they are now viewed by numismatists as essential artifacts of the period preceding the dramatic shift in Portuguese-Brazilian relations following the Napoleonic Wars.