‘G.F. – 34’ Gallery

‘SFERE’ Gallery

‘Speregut’ Gallery

Untitled, 1952 (pencil on paper) Gallery

‘Kristallinische Gliederung’ Gallery

Untitled, 1971 Gallery

‘Symmetrie’ Gallery

Untitled (watercolour on board) Gallery

Untitled, 1985 (collage, charcoal on paper) Gallery

Untitled, 1984 (oil on cardboard) Gallery