Bridget Riley, Hesitate, 1964.
Tate: Presented by the Friends of the Tate Gallery, 1985
20. Hesitate
| Artist | Bridget Riley |
| Year | 1964 |
| Medium | Synthetic emulsion on board |
| Dimensions | 421⁄8 x 441⁄4 in. (106.7 × 112.4 cm) |
| Collection | Tate: Presented by the Friends of the Tate Gallery, 1985 |