This photo provided by the Evansville Museum of Arts, History & Science shows Pablo Picasso’s “Seated Woman with Red Hat” (“Femme assise au chapeau rouge”).
The layered, fired glass piece was donated to the museum in 1963. It was cataloged as art inspired by a design for a Picasso painting and credited to another artist named Gemmaux, museum officials said. The supposed artist’s name turned out to be the plural for “gemmail” — the type of glass used in the work.
The Indiana museum plans to sell the piece, kept in storage nearly 50 years and only recently discovered as genuine, because it is too expensive to keep. It is not known how much it is worth.