One of Nelson Mandela's first sketches sells for $90,000
Plus: online gallery deal stumbles; Frieze and Tefaf fairs coexist in New York; Phyllida Barlow makes pom-poms for Masterpiece
Plus: online gallery deal stumbles; Frieze and Tefaf fairs coexist in New York; Phyllida Barlow makes pom-poms for Masterpiece