Cornelius Gurlitt, the elderly German art collector in whose Munich apartment police found some 1,400 valuable artworks, kept more than 60 masterpieces, including works by Monet, Renoir and Picasso, at his home in Salzburg, Austria, his spokesman, Stephan Holzinger, said.

The works will be examined by art experts to determine their provenance and whether they were looted by the Nazis, as is suspected in the case of some of the artworks discovered at Gurlitt's Munich apartment, Holzinger said.

A preliminary examination of the works in Salzburg did not raise any suspicions about their provenance, Holzinger said.

Reports about the works in Austria have once again focused attention on the collection belonging to Gurlitt, who is 81 and the target of a tax investigation.

The artworks at Gurlitt's Munich apartment were found in 2011, but officials kept the discovery quiet for more than a year as they worked to investigate the works' provenance outside the media spotlight.

The collection in Munich contained works by Picasso, Marc, Nolde, Spitzweg, Renoir, Macke, Courbet and Beckmann, as well as works by artists like Marc Chagall and Otto Dix that had never been cataloged and were unknown.

Investigators finally posted photos online of 590 works whose provenance is suspect in response to pressure from the art world and the Jewish community.

Judicial officials decided a few days ago to approve a request from the popular daily Bild and give the media access to a complete list of the works in the so-called "Munich treasure."

The artworks were found in 2011, but the discovery was kept under wraps until Focus magazine published a story about the find on Nov. 3, 2013.

The works, which some experts estimated could be worth around 1 billion euros (more than $1.3 billion), were found amid food remains, cans and trash in Gurlitt's apartment.

Gurlitt put Max Beckmann's "Lion Tamer, Circus" up for sale at auction months after the investigation started.

The investigation is being handled by prosecutors in Augsburg.

German investigators have worked for decades to track down the works of art stolen by Adolf Hitler's Nazi regime and return them to their rightful owners. EFE