Berlin: n.p. (Edition Rene Block), 1974
15 x 10cm, 2pp postcard with the design and text by Broodthaers on the front with the text “Mais qui mangera le fromage?” below and on the other side a design by Baumgarten and M. Oppitz for the “Veritable eau de cologne” and “pour saluer die Ausstellung dur die Sinne and den Verstand” – a mix of languages to “salute an exhibition for the senses and the mind”. VG+. Very scarce.