BERLIN (AP) — German prosecutors on Wednesday released more than 1,000 artworks found at the Munich apartment of a reclusive collector, days after he agreed to cooperate with authorities in determining which pieces were seized by the Nazis. However, works whose Nazi-era history is still being probed will remain in custody.

Officials seized some 1,400 items, including 1,280 artworks, from Cornelius Gurlitt’s apartment in 2012 while investigating a tax case. Gurlitt’s lawyers appealed the seizure, arguing that the art wasn’t relevant as evidence for prosecutors’ suspicions of import tax evasion. He also said that seizing the entire collection was disproportionate.