Completar frases 192-testVersión en línea 192-test por Farhad Key 1 expertise consists a disciplines core accessible The Gallery's Conservation Department performs one of the Gallery's functions , the long - term preservation of all Collection items , to make them now and in future . The Collection dates from the 8th century to the present day , and of portraits in variety of media , so the Gallery employs Conservators with in a range of , including Framing , Painting , Paper , Sculpture and Photography .
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