I have some knives I'd like to sell, but can't find anything about them. One is a set made by Schrade for San Diego Knives, called Gold Rush Commemorative. It consists of a large single blade lockback and a fixed blade hunting knife, both with sheaths, serially numbered and etched blades. They look like standard Schrade knives except for the numbers and etching. The other is a Thompson/Center three blade pocket knife. I once found something on the internet that said this knife was designed by Blackie Collins and was made during a time when there was some dispute or disagreement between T/C and Collins, making it a rare variation. I've not been able to find the site since. Any suggestions on how to evaluate these knives would be appreciated. I'm not looking to overprice these, but not wanting to be taken advantage of either.