If you do not know what you have, or are selling, you will not get a fair price for them. Buyers are not in the habit of educating sellers that the gun they are selling is worth more than what they are asking. If you are serious about selling and want top dollar, or at least a fair market value then have the guns appraised by a good dealer or have them listed on consignment.
You could spend a hundred hours learning what you have and what it means. Do you want to spend that much time? I am going to sell a few dozen gun next year when the economy picks up and most likely will sell them on the net, on one of the auction sites. Noting rare in my guns, just project guns and shooters that I have figured out that I will never get to work on in this lifetime. So many neat guns and so little time.