| Descartes - study for the contruction for the Poitiers University | 1930 | |
| drawing sur paper | 0,65 sur 0,81 | Sainte Croix museum Poitiers |
| Descartes - study for the contruction for the Poitiers University | 1930 | |
| drawing sur paper | 0,65 sur 0,81 | Sainte Croix museum Poitiers |