What is the value of a commemorative 1993 Waco Texas silver medallion?

The silver medallion was not issued by the US mint, and has little if any collectors value.

If the medallion is made of pure sliver, it should be marked something like .999 Silver. Normally Sliver rounds also are marked 1 troy oz.

Sterling Silver is 95% pure silver, the value of medallion would depend upon the wight. If it's not marked it maybe silver plated and have no silver value.

The price for a troy Ounce of Sliver can be found on a number of websites. Today silver is about $13.00 a ounce, but this changes daily.

eBay is a great place to research what the medallion might be worth.

Coin Dealers and Pawn shops will not pay full value for gold or silver, remember they must make a profit when they resell. Try to sell it to a individual. internet auction sites like eBay offer a world wide market.