There's an interesting documentary on Netflix called Made You Look that deals with a lot of similar issues to this subthread. Basically a scammer hired a maste

There's an interesting documentary on Netflix called Made You Look that deals with a lot of similar issues to this subthread. Basically a scammer hired a master forger to create new/"original" paintings in the style of a few abstract expressionists (Rothko, Pollack, Motherwell). They came up with a fake provenance and sold them to a prestigious New York gallery for 25 years, making millions of dollars. The gallery then resold them to rich people for even more money. They consulted the top experts in the world to authenticate them and no one raised any doubts. Everyone was happy for a long time until the scam fell apart. They interviewed one of the people who purchased a fake painting and had hung it on her wall for years. She was furious. As a nice little kicker, one of the attorneys on the case has a bunch of these paintings (which had been sold for millions a piece) hanging in his office. There's a little blurb here https://en.wikipedia.org/wiki/Knoedler#Art_fraud_scandal_and_closure https://en.wikipedia.org/wiki/Knoedler#Art_fraud_scandal_and...