One of the rare instances where there is a recording of The Beatles rehearsing at an empty Cavern Club (probably between shows in the afternoon), let alone ANY tape of the Beatles rehearsing anywhere !! Ringo had only been in the band for a couple of months and the first single (Love Me Do/ P.S. I Love You) had been recorded. This rehearsal took place sometime in October/November 1962.
The songs available on bootleg are as follows: "I Saw Her Standing There" (which would open the first LP), two takes of "One After 909" (first recorded March 1963 but not released at the time; later to appear as a re-make on the "Let It Be" official release) and finally two takes of "Catswalk" (unreleased by the Beatles but given to Chris Barber Band to cover. As the song was given away by the composer (Paul), the name of the song was changed to "Catcall").
I have found both "One After 909" and "Catswalk" which are track one and two respectively on the bootleg LP "NOT FOR SALE" (pictured above). It's also available with the tracks "I Saw Her Standing There" and "One After 909" on the bootleg double CD "Anthology Plus" which mistakingly claims the recordings to be from Spring (rather than Fall) 1962 and claims Pete Bests on drums although the style of playing is clearly Ringo.