Any of the following acts are not considered Copyright infringement:
Publication, Distribution, Communication, and/or Reproduction of State emblems and national anthem in accordance with their original nature;
Any Publication, Distribution, Communication, and/or Reproduction executed by or on behalf of the government, unless stated to be protected by laws and regulations, a statement to such Works, or when Publication, Distribution, Communication, and/or Reproduction to such Works are made;
...
Reproduction, Publication, and/or Distribution of Portraits of the President, Vice President, former Presidents, former Vice Presidents, National Heroes, heads of State institutions, heads of ministries/nonministerial government agencies, and/or the heads of regions by taking into account the dignity and appropriateness in accordance with the provisions of laws and regulations.
Uploaded a work by Indonesia Post from https://www.postcrossing.com/blog/2017/07/14/postcrossing-turns-12-new-postcrossing-stamps-from-indonesia with UploadWizard