It was a van Gogh, then it wasn’t a van Gogh and now it’s a van Gogh again, maybe this time for good.

New research has shown that a still life painting of a vase brimming with flowers, bought in 1974 by the Kröller-Müller Museum in the central Netherlands, was executed directly over a painting of two wrestlers that matches a description of an image that a young van Gogh once mentioned in a letter to his brother, Theo, as a work in progress....