Sacra Sindone - Holy Shroud of Turin
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However, in 1973 Swiss criminologist Max Frei Sulzer, a former forensics director in Zurich, with adhesive tape removed from the surface of the Shroud samples of dust and pollen, which he then studied by electron microscopy, publishing his results in 1976.
Frei listed 60 different types of pollens, including 21 species typical of Palestine, 6 of Anatolia, 1 of Constantinople, as well as others from Italy and France, places where the presence of the Shroud was historically recorded. He concluded that the Shroud had been both in Palestine and Turkey, as well as in France and Italy, which would agree with the hypothesis of a history of the Shroud prior to the 14th century.