Bamboo Vessel

How I can fix my faucet leaking remove pan?
It is a unique identifier type. See for Google Research: bamboo fountain brass faucet Cove boat fled the top bar, and I do not really know what to do with it to remove and repair. Please help. I have it on Overstock.com so I can not recall. OK found it. The handle of the screw before. Stud screws in it, was an insert in the center of stem of an Allen wrench, unscrew and the top is removed. New problem – the nut on top is no place for me to get a key or on the subject. Ideas?
Try turning the nut (all the top that attaches the handle to OFF.) Cartridge should stop. This valve may have a ceramic cartridge or can be Delta style clone. If you have a cartridge, then get a replacement. If she has a Delta-style ball with springs and rubber stamps, redress. If you has a view of the parties would be much easier.