I would sell them yourself.
I gave a large quantity of S&W .38 Single Shots to a major Smith & Wesson dealer to sell after a trade we had fell through. After agreeing on prices he showed them at one or two shows. Suddenly they were in an auction catalog without my consent. Bottom line, I got less than 1/3 of what I paid for them. A gunshop, if your luckly, will give you about 1/2 of what a piece is worth. An auction house will sell an item for whatever they can get. Unless you have a reserve on a gun, auctions don't like to not sell. Plus depending on which one you go to, they will get at least 30%. If your not in need of money, take your time. You can always trade some of them for what you collect.
Just my opinion, I'm sure someone else will have better advice.

__________________
Don Mundell