"Moments like this are incredibly rare," Frances Fowle, senior curator of French art, said in a ... the self-portrait is on the back of the canvas with Head of a Peasant Woman and is covered ...

A hidden self-portrait by Vincent van Gogh ... The image was found when art conservators took an X-ray of Van Gogh’s 1885 “Head of a Peasant Woman” painting ahead of a forthcoming exhibition.

The hidden self-portrait was covered by layers of glue ... one of the most famous and influential figures in Western art history. Head of a Peasant Woman entered the National Gallery of Scotland ...