IMHO, If you are not interested in it as a keepsake or for your own collection, then you should view this as you would any collectable you are not interested in, and look at its price history. I don't think it's a great investment just in financial terms. Of course, great investments are hard to find today. But, if you want the money now, for your mom for instance (and I'm sure a grand will help her), just use the best resource to get the best price, probably that gun trader website. The larger the potential market, the better price you will get, generally. If it's not a local sale, have the buyer pay with a postal money order. If the buyer wants to use Paypal, that's ok as they will guarantee the payment, but they charge about 3%.