Exposing modern forgers

Robert Trotter forged Sarah Honn’s picture of 1866 only in the second half
Robert Trotter forged Sarah Honn’s picture of 1866 only in the second half of the 20th century. (Source: James Hamm, Buffalo State College, The State University of New York, Buffalo, NY)
Researchers at ETH Zurich have developed a process that can provide conclusive evidence with regard to modern fakes of paintings, even in cases where the forger recycled older canvases. This verification process requires less than 200 micrograms of paint. Art forgeries have been around since ancient times. However, the art market is booming and commercialisation has increased apace. As a result, some people are tempted to copy historical paintings in the hope of making a 'quick buck'. These fakes are most easily detected if it can be established that the materials used are more recent than the date of the painting. That is why, in an attempt to conceal the fake more effectively, modern forgers often use old materials or opt to paint over older artworks.
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