The chief conservator at the Kunstsammlung Nordrhein-Westfalen in Düsseldorf developed a novel technique to remove years of grime from ‘‘Number 32.’’
CHARLY WILDER, NY Times: Art & Design
Fri, 04/15/2016 - 3:17am
The chief conservator at the Kunstsammlung Nordrhein-Westfalen in Düsseldorf developed a novel technique to remove years of grime from ‘‘Number 32.’’