It is the text of a treaty, convention, law, decree, regulation, judicial decision, or other official enactment. (Law 9610/1998, art. 8)
It is a work whose authors' rights belong to the Brazilian government (federal, state, or municipal), for which the economic rights shall be protected for a period of 70 years from the first of January of the year following that of their disclosure or that of the author's demise, whichever is later. ([1])
Uploaded a work by unknown - The photo is attached to a 1958 Brazilian immigration document. from https://www.ancestry.com/imageviewer/collections/9800/images/004834224_00117?treeid=112913221&personid=132239060858&rc=&usePUB=true&_phsrc=GcU156&_phstart=successSource&pId=5115859 with UploadWizard