If you go to eBay and type “Rembrandt” or “Picasso” into the search bar, you will not find canvases selling for a few hundred dollars purporting to be authenticated works. But try it with a few famous Eastern European names — Kazimir Malevich, Lyubov Popova, El Lissitzky, Gustav Klutsis — and you’ll find exactly that. Canvases that […]