Prev Next Category: Envelope Invitation from Sevöl 1984-09-13 Reinhart Sevöl, England Section: Mail Art Network Sent from: Paris, France Medium: Paper, Typed letters Category: Letter, Envelope Dimensions (cm): 29.7 x 21 Pages: 9 Notes: "The Pattern Drills" Subject: reinhardt sevöl, mail art, the pattern drills, structural patterns