"I sell more in four days then I did in six months at the galleries, " says dealer Catriona Fraser.

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The 57 Italian Baroque masterpieces were already on long-term loan to six British museums and galleries, including London's National Gallery.

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In the past five or six years, many galleries have migrated to open on Potsdamer Strasse in western Berlin, a street lined with antiques and art dealers before World War II.

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Mr. Carpenter, who was appointed curator of Japanese art in July 2011, devotes about a fifth of the permanent exhibition space to ancient artifacts and Buddhist art and uses the remaining galleries to stage six-month-long installations, each illustrating an aspect of Japanese art.

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In 1967, six years after Pop emerged in the most cutting-edge galleries, Roy Lichtenstein set a billboard work in a Sears parking lot.

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And I've been doing shows now for about five or six years at smaller, kind of more underground graffiti-interested galleries.

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