Tag Archives: Peter Paul Biro

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Investigations

The Real Thing?

A fingerprint has intensified the debate about the origin of a mysterious drawing sold at auction for $21,850. Experts don't agree whether it's a 19th–century German work or a genuine Leonardo worth $150 million. Read More

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Investigations

The Blue Print

A 50-year-old fingerprint on the side of a paint can fuels an attribution to Jackson Pollock—and charges of forgery. Read More