- ·Birds
- ·1969
- ·22 cm
- ·Ink, paper
- ·00.238.14.
- ·Birds
- ·1969
- ·22 cm
- ·Ink, paper
- ·00.238.15.
- ·Birds
- ·1969
- ·22 cm
- ·Ink, paper
- ·00.238.16.
- ·Relief, plan
- ·1960
- ·30 cm
- ·Ink, tracing paper
- ·00.288.1.
- ·Relief, plan
- ·1960
- ·30 cm
- ·Ink, tracing paper
- ·00.288.2.
- ·The world of cells, plan
- ·1967
- ·32 cm
- ·Ink, tracing paper
- ·00.287.1.