Les timbres.
The French government is in charge of issuing stamps, and do issue stamps commemorating the French Territorial Claim on Antarctica.
Yes, they are.
Marianne.( Portraying the French Republic.)
les timbres-poste
It depends on how organised you are
If you remove the French stamps, then yes you can. No, that is not allowed. The postage should be the stamps of the country where the card or letter is mailed from. In this case, Belgium wants paid for handling the mail.
All French postage is issued by the French Bureaux de poste.
A stamp is "un timbre" (masc.) in French.
The nation of France issues all stamps that attempt to exude their sovereignty over any part of Antarctica.
Most current Hungarian stamps say Magyar Posta or Magyarorszag but some stamps do not have the word Magyar.
The same reason that Americans put stamps on postcards. Too mail the postcard!
US postal stamps can only be used for letters that are mailed in the US. If you are mailing a letter in a European country, let us say France, they you need to use French postage to mail a letter to the US or any other destination.