Untitled (not dated)
Pencl on paper, signed “H”, numbered 10430, 16.5 x 7.9 cm. Private collection, Switzerland.
Untitled (17 January 1910)
Ink on paper, not signed, dated, 21 x 16.9 cm. Private collection, Switzerland.
Untitled (not dated)
Ink on paper, not signed, 20 x 16 cm. Private collection, Switzerland.
Untitled (not dated)
Ink on paper, not signed, numbered, 15.4 x 20 cm. Private collection, Switzerland.
Untilted (1910)
Ink on paper, not signed, 21 x 16.8 cm. Collezione privata, Svizzera.Private collection, Switzerland.
Untitled (not dtaed)
Ink on paper, not signed, 21 x 13.5 cm. Private collection, Switzerland.
Untitled (not dated)
Ink on paper, not signed, 14.4 x 8.8 cm. Private collection, Switzerland.
Untitled (not dated)
Ink on paper, not signed, numerato 10409, 20.8 x 15.6 cm (26.7 x 20.1 cm (cartone)). Private collection, Switzerland.
Untitled (undated)
Mixed media on paper, not digned, stamp of the Galerie Neupert Zürich , 19.5 x 14.2 cm. Private cololection, Switzerland.
Heads (1910-1912 ca.)
Ink on paper mounted on cardboard, not signed, 33 x 20.7 cm (43 x 29.8 cm (cardboard)). Private collection, Switzerland.
