Cartes Postales. Paris: Bibliotheque Nationale de France, 2013. 10.5 x 14.8 cm.
Set of 8 detourned postcards postcards released on the occasion of the Guy Debord exhibit at the Bibliotheque Nationale de France. Limited Edition of 500 each. Some postcards are “detournements of detournements”
Carte Postale #1 – “Construisez vous-memes une petite situation sans avenir” (originally printed by the IL in May 1955)
Carte Postale #2 – “Si vous vous croyez du genie, ou si vous estimez posseder seulement une intelligence brillante, presentez-vous [a l’exposition Guy Debord. Un Art de la Guerre. du 27 mars au 13 Juillet 2013 a la BnF, Paris 13e (originally printed by the IL in December 1955)
Carte Postale #3 – “Guy Debord: Un Art de la Guerre” (picture originally taken in Sept. 1960)
Carte Postale #4 – “A Bas la Societe Spectaculaire-Marchande” (CMDO poster originally released in May-June 1968)
Carte Postale #5: “Aaaaahhh l’Internationale Situationniste!!!” (originally published 16 May 1968)
Carte Postale #6 – “Realisation de la Philosophie” (originally published 17 June 1963)
Carte Postale #7 – “Le matin apres dix heures…” (originally published in 1958)
Carte Postale #8 – “Depassement de l’art” (17 June 1963)
Situationniste Blog 
The first and the second postcards was not “originally published in 1958”.
The original flyer “Construisez vous-memes une petite situation sans avenir” was printed by the Letterist Internationale in May 1955 (see Guy Debord, “Œuvres”, «Quarto» Gallimard, 2006, p. 188) and the other flyer “Si vous vous croyez du genie” was printed (also in English) in December 1955 (see the same book, p. 217).
This is absolutely correct. Thank you for the note. I will update the records accordingly.