Fil horizontal et un fil vertical / Horizontal and Vertical Line (1962)

1. Fil horizontal et un fil vertical, 1967
    Published by the artist
    Mimeograph on white paper
    with cotton string, 27 x 21 cm.
    Unsigned and unnumbered  
    Part of  "Fourre Tout No. 1", No. FX1262-01
     and included in "Gift to Luigi", No. 1343

2. Horizontal and Vertical Line (1962), 1968
    Published by VICE-Versand, Remscheid No. FXC8139
    Wooden frame, 50 x 67.5 x 6 cm.
    Containing two cardboards,
    12 x 12 cm. each
    Signed and numbered 032 / 033
  

Bibl.: P. Schmieder "Unlimitiert", Cologne 1998, pp. 146-147, No. V41.