Prev Next Category: Envelope Invitation from Progressive Press 1981-10-01 Progressive Press, USA Section: Mail Art Network Sent from: Dearborn Hights, MI, USA Medium: Printed matter Category: Invitation, Envelope Dimensions (cm): 28 x 21.5 Pages: 2 Notes: "The Wire", "Non-censorship in art" Subject: progressive press, mail art, the wire, non-censorship in art