#Christie’s and #Sotheby’s increasingly are lining up third-party guarantors, sophisticated financial players, to minimize their own risk at #auction.
https://www.bloomberg.com/news/articles/2017-12-20/guaranteed-sales-fuel-the-art-market
Check out remnants of the Diego Voci #Estate owned by Helga Voci, Diego’s widow.:

Purchase Prices are in EUROs
https://www.diegovociproject.com/acquire-graphics-shopping
https://www.diegovociproject.com/acquire-originals