Clausen guesses that the forgery was done in the 1940s or 1950s (“The prime forgery suspect is Carl Schweidler, whom Clausen calls ‘probably the best paper restorer of the 20th century.’”);
The reason why Christie’s was led astray was that one of the reference gores—the Bavarian State Library’s—was also a fake (that latter fact has already come out, but this article doesn’t gloss over its importance); and
Barry Ruderman, Clausen’s boss, guesses that this is only the tip of the forgery iceberg.
Still more coverage of the cancelled auction of the Waldseemüller globe gores that were later identified as fakes, this time from the Houston Chronicle, which pursues the local-interest angle by talking to Michal and and Lindsay Peichl, restorers from Clear Lake, Texas (their firm is Paper Restoration Studio) who were brought in to examine the gores along with other experts. Michal says it didn’t take him long to figure it out:
“My first reaction when I saw the picture was, ‘Oh my God, this is a fake,'” said Michal. “You could tell this was a sheet of paper pulled from a book binding board.
“It was printed on a piece of paper that used to be glued on the back of book and that was a red flag to me because as a forger, if you want to make a fake, that’s where you would go to get a clean sheet of paper.”
More on the cancelled auction of the Waldseemüller globe gores from Minneapolis-St. Paul TV station KARE, which looks at the work by the James Ford Bell Library that raised questions about the authenticity of the gores that Christie’s was set to auction last week. And a seriously buried lede: another set of Waldseemüller globe gores may not be authentic either: “During this process, experts also discovered that a copy at the Bavarian State Library in Germany may not be authentic, as well. Ragnow said that copy matches closely with the 2017 Christie’s one.” [WMS]