Cover ornamented with rubber stamps in red ink: "first day of issue ersttagsbrief", "I3M.A.". Rubber stamp in green ink: "porto-edition no", postage stamp design with cartoon profile. A4 sheet. enclosed. Invitation to participate in mail art workshops in the USA in summer 1987. A4 sheet enclosed. Photocopied collage of text, images, and rubber stamps, promoting "art on the move" "tourism" mail art project. A4 sheet enclosed. Text by Küstermann about the "art on the move" project. Paper slip enclosed. Request for birthday information, artist will send the "International Mail Artists Birthday Calendar Poster" for next birthday.