I can't make much out of it either. Maybe some of these other guys can.
If you want to make top dollar you need to sell it yourself. Easiest way is to get set up on one of the on line auction sites like Gunbroker.com.
That will be some effort for just one gun. So, word of mouth or maybe a gun shop that sells on 15% or so consignment might work better.
Just selling outright to a gun shop will get you the least money since their only interest is going to be reselling at a profit.