- ·Sketch
- ·1970
- ·22 cm
- ·Pen, paper
- ·00.314.2.
- ·Sketches
- ·1970
- ·22 cm
- ·Pen, paper
- ·00.314.3.
- ·Sketches
- ·1970
- ·30 cm
- ·Pen, paper
- ·00.314.1.
- ·Sketches
- ·1970
- ·22 cm
- ·Ink, paper
- ·00.314.6.
- ·Sketches
- ·1970
- ·22 cm
- ·Ink, paper
- ·00.314.15.
- ·Hills with birds
- ·1970
- ·21 cm
- ·Ink, paper
- ·00.283.2.