How did a £120 painting become a £320m Leonardo … then vanish?

A film about the disputed Salvator Mundi blames the National Gallery for its role in giving credibility to the claim that it was the artist’s lost work

https://www.theguardian.com/artanddesign/2021/jun/13/how-did-a-120-painting-become-a-320m-leonardo-then-vanish