What is the most expensive art piece?

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Tags

1. #mundi
2. #missing
3. #unknown
4. #salvator
5. #painting
6. #prince
7. #million
8. #dhabi
9. #expensive
10. #leonardo
11. #auction
12. #whereabouts
13. #world
14. #panicking
15. #saudi
16. #louvre
17. #vinci