40 Reis - João VI Lisboa mint

The KM#E1 designation marks this as a pattern — an essai struck for official examination rather than circulation. João VI died in March 1826, meaning this 1825 piece was produced in the final year of his reign, almost certainly as part of the Casa da Moeda's routine proposal process for a revised copper coinage that never reached full production. The Gomes J6.05.0x suffix notation indicates a subtype still being catalogued or confirmed, which itself speaks to how rarely these pieces surface for study.