Karl Buchholz (art dealer)

In 1934, the international bookstore on Leipziger Strasse included a gallery of contemporary art on the floor above the shop, where Curt Valentin worked until he emigrated in 1937 and founded the Buchholz Gallery on 46th Street in New York[2] Karl Buchholz dealt in art looted by the Nazis, both from museums and from Jewish collectors.

[9] Buchholz sold art in Norway, Switzerland and the United States and supplied east coast museums through his New York gallery.

Claims filed in U.S. courts concern art allegedly stolen from Georg Grosz and from Alfred Flechtheim which transited through Buchholz' partner Curt Valentin[24][25] as well as from Alphonse Kann[26] and others.

Claims that have gone before German commissions include artworks that belonged to Clara Levy, a textile manufacturer who was persecuted by the Nazis.

[27] Karl Buchholz played a key role in laundering Nazi-looted art and is the subject of ongoing studies[28] and hi name appears in numerous claims for restitution.