Branch unlikely to be able to, if that stuff is kept that far back it's on whatever the more modern equivalent of the microfiche is, it will be in storage if it exists and if so they could get them for you, probably a hefty enough charge per page.
Banks did a big clear out a few years ago once the embargo on the destruction of banking records was lifted. You might get lucky but your best bet would be if you had a mortgage account at the time, that is one they would/should have kept the details
It could be worth trying Revenue to see if they have anything on file going back that long