- ·Horse skull, study
- ·1973
- ·33 cm
- ·Ink, paper
- ·00.158.2.
- ·Horse skull, study
- ·1973
- ·33 cm
- ·Ink, paper
- ·00.158.3.
- ·Horse skull, study
- ·1973
- ·33 cm
- ·Ink, paper
- ·00.158.4.
- ·Horse skull, study
- ·1973
- ·33 cm
- ·Ink, paper
- ·00.158.5.
- ·Horse skull, study
- ·1973
- ·33 cm
- ·Ink, paper
- ·00.158.6.
- ·Horse skull, study
- ·1973
- ·25 cm
- ·Ink, paper
- ·00.157.1.