City (1962)
Ink on paper, signed and dated upper right, 10 x 13 cm. Private collection, Switzerland.
City (1962)
Ink on paper, signed and dated upper right , 21 x 30 cm. Private collection, Switzerland.
Berglandschaft (1910-1912)
Oil on paper mounted on board, signed lower right, 25 x 34 cm. Private collection, Switzerland.
Argument Over a Dog (1978)
Oil and pencil on paper, inscribed and signed on the reverse, signed and dated lower left, 34 x 48 cm. Private collection, Switzerland.
