These images show the true colour reflectogram of this painting on the left and the near infrared reflectogram (1000-1200 nm) on the right. The images were acquired using the Artist multi-spectral imaging system...
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During the exhibition "The Art of Conservation" in the Rijksmuseum Twenthe in Enschede, the Netherlands, a wooden panel painting was cleaned with the laser cleaning station of Art Innovation. This painting, from a small pilgrim...
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Jan Provoost mainly painted altarpieces. This painting at the Rijksmuseum Twenthe originates from the inner left panel of a triptych. In near infrared (950 - 1150 nm), the MuSIS 2007 reveals that Provoost first drew his image with characteristic curling lines...
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Observation of a detail of this painting in near infrared (700 - 950 nm) reveals a partially overpainted thumb and index finger of the hand (bottom left picture). Also note the...
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The high resolution of our multispectral system compared to other cameras is very convenient when studying fine underdrawing and painting details. The infrared image of this painting detail (picture above) clearly shows a...
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The Gruuthuse Manuscript is a very diverse collection of Middle Dutch rhyming literature which was most likely compiled between 1395 and 1408. It is a very prominent document in Dutch history for several reasons. Perhaps the most important...
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Yellowing of paper is a very important degradation process. For fundamental research on this subject, the National Archives store reference paper sheets under different conditions for several years, and measure periodically the progress of yellowing...
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The color image above shows a detail from one of the two letters Vincent sent to his brother discussing the famous painting: the potato eaters. In this letter Vincent included a sketch to illustrate his writing. The ink used for the writing and the sketch...
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The images show a detail of a santos (statue) of the Lady of Sorrows. This particular statue was made from painted paper maché formed around a wooden frame with a earthenware head and dressed in miniature clothes. In infrared a repair...
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Multispectral capabilities have been used to investigate the so-called Pallimpsiston texts in the National Gallery of Athens. According to the interpretation, the depicted text is a written agreement between a man and his...
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The variety of combinations of different types of foreign matter (dirt) on paper objects can present complex cleaning problems in paper conservation. Current cleaning methods using conventional means (solvents, mechanical) are not always...
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Watermarks in paper can usually be seen by holding the paper in front of a light. In many cases however, written text, printing or drawings can obscure the watermark and complicate its identification and interpretation...
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The SEPIA Quantitative hyperspectral imager of the Nationaal Archief (National Archives of the Netherlands, The Hague) was used to record spectral images of the drawing "View of Havana", that was manufactured around 1665 in the workshop of Johannes Vingboons in Amsterdam.
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