I did a stupid thing with one Event in iPhoto library. I thought of making a copy of this Event, and I did use the menu duplicate.
Instead of creating another copy of event, it did copies of all the photos inside the existing event. (new to iPhoto usage ;-))
So the big task I have is to delete the possible duplicates of 350 photos. Is there any tool/ option in iPhoto/ apple script etc.. to accomplish task ?