"Picasso often reused his canvases at this time because he did not have much money," the institute explained Historians recently made an unexpected discovery while examining one of Pablo Picasso’s paintings.

A previously unknown painting by Pablo Picasso has emerged from the shadows of history, hidden beneath a Blue Period masterpieces.

Experts analyzing the painting have several theories about why this unidentified woman has remained submerged for more than a century.

One of Pablo Picasso's earliest Blue Period paintings contains another portrait hidden beneath its surface, specialist imaging technology has revealed. The big picture: The artwork of the mystery woman was discovered when Courtauld Institute of Art conservators "took x-ray and infrared images of Portrait of Mateu Fernández de Soto — a portrait depicting Picasso's sculptor friend painted in 1901,

X-ray and infrared imaging has revealed a long-hidden painting beneath "Portrait of Mateu Fernández de Soto," providing researchers with new insights into the artist's blue period

Under the painting of a Spanish sculptor is the outline of a woman, according to new infrared images. The artwork will be displayed in London.

Conservators at London's Courtauld Institute used x-ray and infrared images to reveal the previously unseen works

Nearly 125 years after Pablo Picasso painted one portrait, high-tech imaging tools have revealed a secret — another, earlier portrait concealed beneath.