Apart from the airport and city view, the card shows a stadium.  The printed caption says it is Estádio Vitorino Gonçalves Dias, but long ago someone crossed that out and changed the name to Estádio do Café.  (They would know better than we do.  No guarantees!)  Unused card, highly aged, photo corner album marks, and a round green chop mark of what might be a football club logo.  Grade: 4