Prev Next Category: Envelope Letter from Groschopp 1983-09-14 Michael Groschopp, DDR Section: Mail Art Network Sent from: Magdeburg, DDR Medium: Printed matter Category: Letter, Envelope Dimensions (cm): 16 x 22.5 Pages: 5 Notes: "pARTner" Subject: michael groschopp, mail art, international mail art project, partner