Coins Sealed

How much should I sell my coins for?
I have two gold coins. One is a 1915 2.5 dollar and the other is an 1856 (can’t quite remeber off the top of my head but I think that’s the year) hold 1 dollar. Both are in excellent shape. They were likely circulated but you could hardly tell. If I sent these to the NGC to get them graded and sealed would it increase their value? Or should I sell them as they are?
You can get a free price quote from empire gold.
http://www.shareasale.com/r.cfm?B=185538&U=366479&M=23357
Factory Sealed
April 10th, 2010 in
Uncategorized | tags: proofsetsilver,2007silvereagle,silverproofeagle,proofcoins,u.s.mint