'I'm in love' was discovered in a battered suitcase at an Australian flea market. Although the track was written by Lennon and McCartney it was never released by the Beatles.
The tape also includes versions of 'Cry baby cry' and 'We can work it out' and is believed to have been recorded by Beatles roadie Mal Evans.
"This is the first time that this recording of I'm in Love has been heard in more than 30 years," said Peter Bale, Times Online's editorial director.
"We are very excited to give Times Online readers and Beatles fans the opportunity to judge for themselves, and decide whether this track is part of this lost Beatles archive."
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