Bobblehead - Barter

 is a Fallout 3 Vault Boy Bobblehead item. It permanently improves your character's Barter skill by 10, to a maximum of 100.

Location
It is found at Evergreen Mills Bazaar', in a dark cave-nook, in the corner of the room to the right of Smiling Jack. Jump over the work bench, it's on the right-most shelves. To find out the precise location, click the video link in the bottom of the main page Vault Boy Bobblehead.