Business envelope printed with address details for the C.D.O. (Centro Documentazione Organizzazione, Center for Document Organization) art archive and mail art space. Rubber stamps in purple ink: cartoon frame with a woman talking on the phone about the 1st international mail-art manifesto, and "STAMPA". A4 sheet enclosed. Typewritten letter on C.D.O. letterhead by Romano Peli and Michaela Versari about the manifesto, and also including information about a forthcoming collection of mail art essays. Poster on pink paper with manifesto in both Italian and English, dated June 1982.