There's a fairly sensationalist TV show in the UK where art owners submit pieces they believe to have been misattributed works of note to a panel of experts who

There's a fairly sensationalist TV show in the UK where art owners submit pieces they believe to have been misattributed works of note to a panel of experts who adjudicate (https://www.bbc.co.uk/programmes/b01mxxz6 https://www.bbc.co.uk/programmes/b01mxxz6 - Fake or Fortune). By far my favourite bit is the restoration where they painstakingly remove the varnish that's been left to fester over the years. Obviously not easily done on the Mona Lisa but the difference is absolutely remarkable. That's actually another point that makes me disagree with the "value is in the craft" argument. Art is not static, it changes over time. If you're interested, this episode has a great restoration, starting somewhere in the middle and revealed at the end: https://www.youtube.com/watch?v=Mv6m8aHAtTM https://www.youtube.com/watch?v=Mv6m8aHAtTM