Blek le Rat/Xavier Prou (*1951), self-portrait, stencil graffiti, Île Saint-Louis, Paris, 1984, "Paris Graffiti" postcard, 11 x 15.3 cm, photo: Rosine Klatzman.
Postcards spread street art quickly and inexpensively. This photo was taken for a press article in December 1984. It is predated to 1982/83 on Blek's website.