This is one of five versions of Sunflowers on display in museums and galleries across the world.
Van Gogh made the paintings to decorate his house in Arles in readiness for a visit from his friend and fellow artist, Paul Gauguin.
"The sunflower is mine", Van Gogh once declared, and it is clear that the flower had various meanings for him.
Vincent van Gogh | Sunflowers, 1888 | National Gallery, London