Optical illusion puzzle, with 16 square pieces decorated with concentric rings divided into four smaller boxes. Assembling the pieces in the correct order is made more difficult by the way the colours change as they move.
| Item number | 79250 |
|---|---|
| Category | Optical Toy |
| Type | Proto-Cinema |
| Language | English |
| Country of origin | UK |
Part of the Bill Douglas and Peter Jewell Collection