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Сообщение от Serg987
By this method of analysis of age should be treated only as one of the complex technological expertise to determine the age. And he answered only one question: "is present in a colorful layer of linseed oil before or after 1945 .?"
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Coglasen with you. Moreover, outside of this technique is the entire corpus of works written in tempera and gouache, which are binding in gum arabic, casein glue, gum, egg yolk, etc., depending on the recipe.