Sketches e, 1967

From a portfolio of six intaglios of one colour, Edition: 18
White hand-made paper by F. Siegenthaler, embossed with the printer's dry stamp lower left corner
Sheet: 8.7 × 12.2 in. / 22 × 31 cm (Image: 6.8 × 4.8 in. / 17.3 × 12.4 cm)

Note II, 1967

Etching [one plate], Edition: 14
Auvergne Richard de Bas hand-made orange-buff paper with watermark, 240 gsm, embossed with the printer's dry stamp lower left corner
Sheet: 25.6 × 20.1 in. / 65 × 51 cm (Image: 8.8 × 10 in. / 22.3 × 27.3 cm)

Untitled, 1968

Mezzotint and dry point, Edition: 12
Auvergne mould-made paper, embossed with the printer's dry stamp lower left
Sheet: 20 × 15.9 in. / 50.8 × 40.5 cm (Image: 8.7 × 5.8 in. / 22.1 × 14.8 cm)

Roman Notes I, 1970

A set of six offset color lithographs, Edition: 100
Heavy offset paper
(Sheet: 34.2 × 27.6 / 86.8 × 70 cm)

Untitled, 1971

Lithograph [one stone], Edition: 24
Buff cream Arches paper with watermark, embossed with the printer's dry stamp
56.8 × 76.4 cm / 22.4 × 30.1 in.

Natural History Part. I / No. III, 1974

A portfolio of ten prints: Natural History Part I Mushrooms, Edition 98
Lithograph on Richard de Bas paper, grant-lithograph, collotype, photochrome from one offset reproduction on Rives Couronne paper
29.9 × 22 in. / 76 × 56 cm

Natural History, Part II, Fagus Silvatica, 1975/1976

A portfolio of eight prints, Natural History Part II, Some Trees of Italy. Edition: 98
Lithograph, grant-lithograph, two collotype runs [cream-white and light green].
29.9 × 22.2 in. / 76 × 56.5 cm

Six Latin Writers and Poets, Virgilius, 1976

A portfolio of seven prints, Edition: 60
White Richard de Bas hand-mould paper with watermark, 240 gsm, embossed with the printer's dry stamp lower left corner
Sheet: 25.8 × 20 in. / 65.5 × 50.7 cm (Image: 12.9 × 9.9 in. / 32.8 × 25.2 cm)

Octavio Paz – Cy Twombly, 1993

A portfolio of four heliogravures, Edition: 15
Sheet: 24.2 × 17.7 in. / 61.5 × 45 cm (Image: 12 × 9.3 in. / 30.6 × 23.5 cm)

Lepanto I, 1996

Edition: 10
Light eggshell-coloured Japon paper
Sheet: 39 × 24.5 in. / 99.1 × 62.2 cm (Image: 28.3 × 19.9 in. / 72 × 50.5 cm)

Untitled, 2001

Edition 30
Hand-made paper embossed with the artist's dry stamp
9.6 × 13.4 in. / 24.5 × 34 cm

Untitled, 2002

Monotype [Unique print]
Acrylic paint on newspaper
23.6 × 17.7 in. / 60 × 45 cm