Serie 1A. AMOSTRA overprints. Central Bank archival specimen. One of the several rare catalog numbers we are offering from the Central Bank Archival collection that shows this scarce 100 Mil Reis design with strong color and detail throughout. The large format is quite inviting allowing for extraordinary detail to be used on the cathedral and steam ship vignettes at left and right respectively. Just some staining at the left from previous mounting and a pinhole are mentioned beyond normal circulation for the grade.Extremely Fine.