As it prepared for an exhibit, the National Galleries of Scotland found a previously unknown self-portrait by Vincent Van Gogh, covered by glue and cardboard, on the back of another of his paintings.
Experts discover Van Gogh self-portrait hidden behind another painting
Van Gogh self-portrait discovered on back side of another painting
Hidden Self-Portrait Discovered Beneath Van Gogh Painting
Hidden Faces: Vincent van Gogh's Secret Self-Portrait
Hidden Van Gogh Self-Portrait Discovered in Scotland - the low countries
Vincent van Gogh: Hidden self-portrait discovered by X-ray
Van Gogh self-portrait found hidden behind another painting - The Boston Globe
UK Gallery Unearths Hidden Van Gogh Self-Portrait - News18
Ghostly self-portrait of Van Gogh discovered on the back of his painting of a peasant
A Ghostly Hidden Self-Portrait of Van Gogh Has Been Discovered in Scotland