New York – A painting by the modernist master Robert Motherwell that disappeared from a New York warehouse in 1978 and was presumed stolen has been returned after 40 years, federal law enforcement officials announced.

U.S. Attorney Geoffrey Berman unveiled the 1967 painting, “Untitled,” at a Manhattan news conference on Thursday where he was joined by FBI officials who helped return the artwork.

The 69-by-92 inch painting was one of several dozen that went missing at some point in 1978 from a warehouse where they were being stored.

Authorities said the painting was found last year in a garage in upstate New York by the son of a man who worked for the moving and storage company that Motherwell had hired.

The New York Times reports that the man was helping his mother sort through some belongings when he noticed the artist’s name on the back of the orange, crimson, blue and black canvas.

The man searched the internet for information about Motherwell and contacted the Dedalus Foundation, which Motherwell set up in 1981 to educate the public about modern art.

Motherwell was an abstract expressionist painter and printmaker who who was part of the influential New York School that also included Willem de Kooning, Jackson Pollock and Mark Rothko. He died in 1991.

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