Eli Lissitzky's Proun P23 No 6. Photo: Pictify.

New York Post – A major investigation into whether art hanging in Dutch museums may have once been Nazi loot has yielded an unexpectedly large result: 139 suspect works, including ones by masters like Matisse, Klee and Kandinsky.The bombshell announcement Tuesday by the museums raises the question of why it has taken them nearly 70 years to examine their collections in a systematic way after World War II — and suggests that even more looted art may emerge from other countries that haven’t yet done so.

“These objects are either thought or known to have been looted, confiscated or sold under duress,” said Siebe Weide, director of the Netherlands Museums Association. He said returning them is “both a moral obligation and one that we have taken upon ourselves.”

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