Unknotting a tangled tale of towels Scientific tests have established that an icon, revered as an imprint of Christ’s face, is 13th century By Martin Bailey Tests on a painting, called the Mandylion, revered as a miraculous imprinted image of Christ, have revealed it to have been made in the 13th century. There are several early versions of the image, but the one in Genoa is the first to have been subjected to a thorough scientific examination. The results are being presented at an exhibition (until 18 July) in the city’s Museo Diocesano as part of the European Capital of...