Yeah - about 26.5 million mising - very little recovered - I doubt it very much it would be used to buy your car with as apparently they have been very careful with the laundering.
Northern Notes were re-issued: just incase you wana be really picky, heres a link to the stolen notes serial numbers with pictures of the stolen notes:
http://www.psni.police.uk/index/medi...ank_serial.htm
and that's another useful one:
http://www.nbonline.co.uk/0,,62916,00.html
My advice is as above - take them to the bank with the gentleman as if he is genuine he shouldn't mind. If they are Ulsterbank notes etc they should be fine - just check serial numbers are different and all the usual stuff. It's harder than it seems to get English notes in large quantities over here
Hope this helped
Terry