It's a truly Fab discovery.

One of the most extensive collections of Beatles memorabilia (search), missing for almost 30 years, may have turned up in a battered suitcase in Australia, The Times of London reports today.

The collection — possibly belonging to former Fab Four friend and roadie Mal Evans (search) — includes never-before-released material from the group and numerous rare bootleg recordings.

Evans' collection mysteriously disappeared after he was fatally shot in Los Angeles in 1976 when police mistook an air pistol he was carrying for a more dangerous weapon.

Experts told the paper that at least some of Evans' memorabilia appears to have ended up in a suitcase purchased by a man at an Australian flea market earlier this year for about $50 Australian or about $36. The contents of the suitcase could be worth hundreds of thousands of dollars.

It contained about 400 photos, vinyl records and reels of tapes marked "Abbey Road." (search) Included are tapes of alternate versions of his songs such as "We Can Work It Out" and "Cry Baby Cry" that have never been publicly played.

John Lennon (search) and Paul McCartney (search) can be heard chatting and experimenting with different sounds on the four and a half hour reel to reel tape.

Part of the Lennon/McCartney recording of a song called "I'm in Love" which was never released by the Beatles, but covered by another band called the Fourmost will be available today on the Times of London Web site: www.timesonline.co.uk.