Prev Next Category: Envelope Invitation from Olbrich 1980-09-19 Jürgen Olbrich, West Germany Section: Mail Art Network Sent from: Kassel, West Germany Medium: Printed matter Category: Invitation, Envelope Dimensions (cm): 20 x 21 Pages: 3 Subject: jürgen olbrich, postgeheimnis, hans-peter schwobel, susanna martinez, in kleinem rahmen, tischgalerie