On 30 October, OFAC issued this Advisory to highlight sanctions risks arising from dealings in high-value artwork associated with persons blocked pursuant to OFAC authorities, including persons on the OFAC List of Specially Designated Nationals and Blocked Persons (the SDN List).
https://home.treasury.gov/system/files/126/ofac_art_advisory_10302020.pdf
https://home.treasury.gov/policy-issues/financial-sanctions/recent-actions/20201030
I had omitted the following link (as it did not seem to generate much interest!), but it seemed time to add it again and say that, if you would like to make a (polite) gesture and help me with my removal and computer costs, I have a page at https://www.buymeacoffee.com/KoIvM842y