For many decades, the Gallery Heinemann was one of Germany’s most prominent art dealers, until it was ‚aryanised‘ by Friedrich Heinrich Zinckgraf in 1939. The German Art Archive of the Germanic National Museum in Nuremberg commissioned Facts & Files to compile the business records of the Gallery Heinemann in an online database, accessible at http://heinemann.gnm.de. The website went online in 2010 and makes information on approximately 43,500 works of art accessible.