Prev Next Sent from: DDR Art Work by Birger Jesch 1983-08-24 Birger Jesch, DDR Section: Mail Art Network Sent from: Dresden, DDR Medium: Printed matter Category: Art work, Book, Envelope Dimensions (cm): variable sizes Pages: 16 Notes: "Pohrpost Crypto Biblio" Subject: birger jesch, rohrpost crypto biblio, cryptography