LOS ANGELES: American singer-songwriter Bob Dylan has sold his personal archive of notes, draft lyrics, poems, artwork and photographs to the University of Tulsa, where they will be made available to scholars and curated for public exhibitions, the school said on March 2.

The 6,000 item collection spans nearly the entire length of Dylan’s 55 year-long career, and many have never been seen before. The collection was acquired by the George Kaiser Foundation and the University of Tulsa in Oklahoma.

The collection also includes master recording tapes of Dylan’s entire music catalogue, along with hundreds of hours of film video.

The Foundation and the university did not say how much the Bob Dylan Archive cost, but the New York Times, which was given an exclusive preview, said it was sold for $15 million to $20 million.

Tulsa is also the home of a museum dedicated to folk singer Woody Guthrie, one of Dylan’s early influences.

“I’m glad that my archives, which have been collected all these years, have finally found a home and are to be included with the works of Woody Guthrie... To me, it makes a lot of sense and it’s a great honour,” Dylan said in a statement.