A self-portrait, previously doubted as being a genuine Rembrandt, has now been scientifically verified as being from the Dutch Old Masters own hand.
After undergoing eight months of painstaking investigative work at the world famous Hamilton Kerr Institute in Cambridgeshire - and re-examination by the worlds leading Rembrandt expert - this now famous self-portrait, the original selfie, is the first Rembrandt in the National Trust
s collection of 13,500 paintings.
Painted by Rembrandt in 1635, the authenticity of the portrait had previously been thrown into doubt by Rembrandt specialist Horst Gerson and the Rembrandt Research Project in 1968.
At the time they felt that certain areas of the painting were not accomplished enough to be by Rembrandt, that the date and painting style didnt correlate and the panel type was unusual.
In 2005 Ernst van de Wetering, one of these experts, concluded that the painting may well be a genuine Rembrandt when confronted with an X-radiograph of the painting and other circumstantial evidence. In 2012 he had a chance to study the painting at the Trusts Buckland Abbey in Devon where his theory was further confirmed.
His assurance led the conservation charity to send the painting away for further scientific analysis. Christine Slottvedd Kimbriel, Paintings Conservator at HKI said: When the painting arrived we felt that a thorough technical examination would aid the reassessment of the paintings authorship and we hoped that the findings could help to verify if it was definitely by Rembrandt.
The self-portrait went through a series of investigate analyses to include close visual examination under magnification, infra-red reflectography, x-radiography, raking light photography and pigment and medium analysis.
Careful cleaning and removal of several layers of aged and yellowed varnish which had been added to the painting much later, revealed the original colours and painting style beneath. What was revealed was a true depth of colour, much more detail and a three-dimensional appearance to the fabric in Rembrandts cloak which had previously been obscured and detracted from the quality of the work in the eyes of the Rembrandt Research Project.
Next, it was close investigation of the artists signature that gave us one of the biggest clues as to its true authenticity. 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 artists 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 infrared reflectography and x-ray photography gave further insight into the compositional changes that took place at various stages during the execution of the portrait. For example a white figure-of-eight cuff could be seen in the x-ray, showing how Rembrandts left hand was at one stage included in the composition. Changes to the outline of the figure, carried out at a late stage and without much care to perfectly match the surrounding paint, were also present, and again, such alterations are present in many of Rembrandts own works, suggesting a dynamic process of painting typical of Rembrandt.
Other processes undertaken included analysis of the wooden panel where the wood was identified as being from the poplar/willow (Salicaceae) family, which Rembrandt sometimes used rather than his preferred substrate of oak or canvas.
A portable XRF (x ray fluorescence) instrument was used for non-invasive analysis across the surface of the painting together with cross section and FTIR (Fourier Transform Infrared Spectroscopy) analysis. This confirmed that the pigments were consistent with those typically used by Rembrandt and his studio assistants. These included the use of azurite (a blue mineral pigment) in the background and smalte (a blue cobalt containing glass pigment) in the costume as well as the consistent use of bone black.
David Taylor, Paintings and Sculptor Curator at the National Trust said: The debate over whether this is or isnt a Rembrandt has been on-going for decades.
The key element for me has been the cleaning. The varnish was so yellow that it was difficult to see how beautifully the portrait had been painted. Now you can really see all the flesh tones and other colours, as well as the way in which the paint has been handled its now much easier to appreciate it as a Rembrandt.
With the technical analysis backing up Ernsts claims, we are obviously very excited. Caring for the work of one of the great Dutch masters although in itself quite daunting, will also give us a great story to tell as we bring the mystery of its authorship to life for our visitors to enjoy.
Ernst van de Wetering visited the painting at the HKI just before it returned to Buckland Abbey. He said: Although I was pretty certain the painting was a Rembrandt when I saw it in 2013, I wanted to further examine it after cleaning and see the results from the technical analysis as this had never been done before. With all this additional scientific evidence, I am satisfied it is by Rembrandt.
The money for the cleaning and investigative work into the painting was raised by the Peoples Postcode Lottery. Kate Pearson Deputy Head of Charities at People's Postcode Lottery said: It is fantastic that this mystery is now solved; and that so many people will now be able to enjoy this newly confirmed Rembrandt. Players of Peoples Postcode Lottery have raised an amazing £41.5 million for charities and good causes since the lotterys launch in 2008 and we are delighted that the National Trust is one of the charities receiving support.
Given to the conservation charity in 2010 the painting has now returned home to Buckland. Post analysis, the painting has an estimated nominal value of £30 million, though as the National Trust cares for items for public benefit for ever, it could never be sold.
Jez McDermott, Property Manager at Buckland Abbey said: This has been a fascinating journey for all of us involved, made possible with the help of so many experts and the support from the PPL. We are very much looking forward to welcoming many visitors to share the story with them at our Rembrandt Revealed Exhibition.
Rembrandt Revealed opens at Buckland Abbey on Friday 13 June