Untitled (Coded Algorithmic Drawing)

signed and dated lower right in graphite hardware: IMB Mainframe Computer software: FORTRAN in batch mode using 16 BPI tape output machine: CALCOMP Drum Plotter created using the Geography Department’s CALCOMP Drum Plotter at Northern Illinois University California Computer Products, Inc. mark printed along the left edge of the paper

Untitled (Coded Algorithmic Drawing)

signed and dated lower right in graphite hardware: IMB Mainframe Computer software: FORTRAN in batch mode using 16 BPI tape output machine: CALCOMP Drum Plotter created using the Geography Department’s CALCOMP Drum Plotter at Northern Illinois University California Computer Products, Inc. mark printed along the left edge of the paper

Rota – 45

signed lower right in graphite titled lower center in graphite artist’s inkless embossment stamped lower left hardware: IBM 1130 Computer software: FORTRAN output machine: IBM 627 Drum Plotter RCM Galerie, Paris, France label adhered to the back of the frame exhibited in Tendencies 5 in Zagreb, Croatia, 1973

Torus

signed lower right in graphite titled lower center in graphite artist’s inkless embossment stamped lower left hardware: IBM 1130 Computer software: FORTRAN output machine: IBM 627 Drum Plotter RCM Galerie, Paris, France label adhered to the back of the frame exhibited in Tendencies 5 in Zagreb, Croatia, 1973

Elips

signed lower right in graphite titled lower center in graphite artist’s inkless embossment stamped lower left hardware: IBM 1130 Computer software: FORTRAN output machine: IBM 627 Drum Plotter RCM Galerie, Paris, France label adhered to the back of the frame exhibited in Tendencies 5 in Zagreb, Croatia, 1973