Cover ornamented with rubber stamp in purple ink: sender's return address. Rubber stamps in red ink: square design with "Mail Art Action Marx-Test", "DO NOT FOLD/NICHT FALTEN/NO DOBLEQUE". Silver label in circular seal design with Karl Marx's hair and facial hair shape: "stamp to create a marxist". Gold label with circular seal design, embossed: "BY PERNECZKY WITH ONE'S OWN HAND". A4 stapled booklet enclosed. Documents the "MARX TEST" project, where Perneczky made circular stamp designs of Karl Marx's hair and facial hair shape with a gap in the face, allowing artists to insert other material to stamp to create a marxist". No date (CDS too faint).