The exhibition at the Tehran Museum of Contemporary Arts includes works by Van Gogh, Picasso, Gauguin, and Warhol. Most of the 188 works were purchased to further Iran's cultural activities by the wife of the late Shah. But the Shah's fall saw the collection locked away by an Islamic government opposed to Western influence.
The Modern Art Movement exhibition runs for the next seven weeks. Reunion Some of the paintings from the collection were put on display when the museum opened in 1978. And a few of the pictures were exhibited after museum director Ali-Reza Samiazar was appointed by President Mohammad Khatami's reformist government in 1998.
The works have spent much of the last 25 years in a vault But the exhibition marks the first time the collection has been displayed together, said Mr Samiazar. Among the paintings on display are: Andy Warhol's portraits of Mick Jagger and Mao; Francis Bacon's Two Figures Lying on a Bed with Attendant, and Jackson Pollack's Mural on Indian Red Ground. Three works in the collection - among them Gabriel, a highly-regarded Auguste Renoir portrait of a semi-nude girl - were not included to avoid offending conservatives. The museum also hosted a British sculpture exhibition featuring works by Damien Hirst and Henry Moore in 2004. But with a recent shift to a hardline government, the future for similar displays is uncertain.