There was some discussion on the Acrobat in uk.music.folk and I think they came up with 2 separate Acrobat Hornpipes - might be worth searching something like Deja News.

I haven't played your ABC yet but I have a version of it played by Tom McConville/ Pauline Cato - if it is the same version as yours, it is a superb tune and one I really ought to learn to play - they do a great job. Just wondering those playing it would suggest to me that it is likey Northumbrian

Jon