Undenominated 'PHARMACIA DERMOL PARA' label in lake additionally inscribed 'MARCA REGISTRADA' and 'DULCE ET HUMANUM EST SEDARE DOLOREM' (the latter in the central design with the Henrique Santos Snake monogram) printed by the American Banknote Company with blue 'SPECIMEN' overprints. Purpose is unknown but could be Revenue based. A fine corner block of ten with 'F5099' File number handstamp and red '1 Eng Rec 5/19/38' manuscript endorsement both in top margin.