Project (1900 approx.)
Graphite and coloured pencil on paper. Private collection, Switzerland.
Project for a decoration (1900 approx.)
Graphite on paper. Private collection, Switzerland.
Project for a decoration (1910 approx.)
Graphite on paper. Private collection, Switzerland.
Project for dining room (Villa Germano Bonetti, Bellinzona, 1910 approx.)
Graphite on paper. Private collection, Switzerland.
