"The cards are unnumbered and were produced in the twenties for the customers of the “Kursaal”, a famous Barcelona movie theater. I think that they were printed by different companies as the backs of the cards sometimes differ in their logos. But the front of the cards is always the same : a portrait with a message in Spanish supposed to have been written by the stars themselves but most likely to have been written by the employees of the Kursaal publicity team."    List and information provided by Marlene Pilaete.   Thanks Marlene!