Courtesy Sotheby's. LONDON .- The first decades of the twentieth century would change the course of art history for ever. This treasure-trove from a private collection – little known and rarely seen – spans the remarkable period, telling its story through...

LONDON .- The passion for collecting often knows no bounds. In the case of Czech-born Albin Schram (1926-2005), that passion was not only boundless, but also intensely personal. From small ink musings to studies for major works of art, the wonderful array...