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prov:generatedAtTime "2023-04-04T13:42:45+00:00"^^xsd:dateTime ;
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schema:abstract "One of three ways to make ultramarine paint. The first, or title page, is not numbered. Page 1-3 are a description of the easiest way to make ultramarine. Take half a 'Pont' Lapis Lazuli en lay it on hot coals. Cool it down with vinegar, grind it with brandy on a porphyry rock. After it becomes dough-like, mix it with wax, linseed oil, terpentine and resin and cook it. Important warnings: use very clean water, preferably spring water and do not handle substance with knifes or iron. The second way is described on page 4-7. The third way is described on page 8-11." ;
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schema:description "Konst, en recept boek, voor de schilders en konst etzers &c : door tijt, en vlijt bij een gebracht, door M.V.H. p. 1-290" ;
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