Cambridge experts have helped prove an art work was created by Rembrandt.
Painting conservator Christine Slottvedd Kimbriel said: "What was revealed was a true depth of colour, much more detail and a three-dimensional appearance to the fabric in Rembrandt's cloak."
The signature and date of 1635, inscribed both on the front and back of the panel, had been considered problematic in previous assessments as it was thought that the style and composition was much more akin to the artist's style slightly later in his career.
But the cross-section analysis left no reason to doubt that the inscription was added at the time of execution of the painting.
The Hamilton Kerr Institute used hi-tech infra-red reflectography and X-ray photography to help verify the picture.
Research showed that the pigments, including the blue mineral azurite and blue cobalt, were consistent with those used by Rembrandt and his studio assistants.
More top news
The parents of a Essex man killed in the attacks in Paris have paid tribute to their son.
Parents of British man Nick Alexander killed in Paris attacks speak ahead of memorial service in French city.
A mild but gloomy start to the day with patchy drizzle in places