The Brazilian imperial mint conducted a series of trial strikes in 1863 as part of ongoing deliberations over reforming the fractional copper coinage — a denomination that had become politically contentious due to widespread counterfeiting of the existing réis issues. Whether this specific piece was ever seriously considered for adoption is unclear; the 40 réis copper denomination never entered regular production in this format.
The Brazilian imperial mint conducted a series of trial strikes in 1863 as part of ongoing deliberations over reforming the fractional copper coinage — a denomination that had become politically contentious due to widespread counterfeiting of the existing réis issues. Whether this specific piece was ever seriously considered for adoption is unclear; the 40 réis copper denomination never entered regular production in this format.