Great advice from Paul! Another way to get a description of each Silver Strike that you have would be to look each one up from the Club's Online Catalog and go to the location and casino listed. You can have an idea if your strike is rare or not by low mintage under the description. An itemized description list, and pictures would help your sales. Most of us buy and sell on eBay and it takes a fair amount of effort and a unfair amount of fees. You can also offer sales on the Club's classified ad after you get a description of what you have.
I hope this helps,
Gene