>Mark Verstockt, Sketch - Thinking of a white metal construction for a lake, 1968-1970.Sketch, fineliner, felt-tip pen and letraset on paper , 27 x 21 cm.
>Mark Verstockt, Sketch - Untitled .Sketch, fineliner, felt-tip pen and pencil on paper, ca. 29,7 x 21 cm.
>Mark Verstockt, Sketch - Untitled.Sketch, fineliner, felt-tip pen and pencil on paper, 21 x 25 cm .
>Mark Verstockt, Sketch - Untitled (uitgave Ziggurat).Sketch, inkjet on paper, 20,5 x 20,5 cm.
>Mark Verstockt, Sketch - Untitled.Sketch, fineliner on paper , 19 x 29 cm.
>Mark Verstockt, Sketch - Untitled.Sketch, fineliner and felt-tip pen on paper, 25 x 21 cm.
>Mark Verstockt, Sketch - Untitled.Sketch, felt-tip pen and pencil on paper, 29,7 x 21 cm.
>Mark Verstockt, Sketch - Untitled.Sketch, gouache and pencil on paper.
>Mark Verstockt, Sketch - Untitled.Sketch, ballpoint, felt-tip pen and pencil on paper.