"Around 9,000 catalogues from more than 390 auction houses in Germany, Austria and Switzerland dating from 1901 to 1945 are now available online, a new resource that art-market historians and provenance researchers seeking to trace and identify Nazi-looted art say is invaluable to their work."
https://www.theartnewspaper.com/news/german-pre-1945-auction-catalogues-are-published-online
@estherschindler
74 years later, and still undoing all their wrongs.
It just blows my mind.