Bridget Riley, Uneasy Centre, 1963.
The Lambrecht-Schadeberg Collection, Museum für Gegenwartskunst Siegen
4. Uneasy Centre
| Artist | Bridget Riley |
| Year | 1963 |
| Medium | Synthetic emulsion on wood |
| Dimensions | 153⁄8 in. (39 cm) diameter |
| Collection | The Lambrecht-Schadeberg Collection, Museum für Gegenwartskunst Siegen |