All the posts by tag "Eugen von Blass" American and 19th c. European Art Sales at Sotheby’s NYC by Matthew Innis | May 1, 2016 19th Century European Art at Sotheby’s NYC by Matthew Innis | October 20, 2015 At Auction: Sotheby’s Spring Sale of 19th Century European Art, New York City by Matthew Innis | April 20, 2015
