Read story here: Dutch art sleuth helps German police track down Nazi art – Yahoo News.

Two bronze horse statues by artist Josef Thorak are transported on a flatbed trailer in Bad Duerkheim, southwestern Germany, Thursday, May 21, 2015. A German investigation into black market art had recovered the two statues that once stood in front of Adolf Hitler’s grand chancellery building in Berlin as well as other Nazi-era pieces that had been lost for decades. Police in five states conducted coordinated raids during more than a yearlong investigation into illegal art trafficking. (Fredrik von Erichsen/dpa via AP)