Re-opened: Which alternator type???

[paul_gtimk2]

I ordered a pulley for a Bosch 65 Amp rated alternator and find it is not the same as the one I have fitted     You can see from the picture that the securing nut is recessed and can't actually be seen.  The pulley that was delivered is flat.

http://s174.photobucket.com/albums/w120/paulgtimk2/?action=view&current=Alternator2.jpg

Can I get some more opinions on what type of alternator I have fitted.

Cheers