This "coin" (technically a medallion, because it's from a private maker), sells for about $28, but is only worth melt value. 1 ounce of silver is currently $17. You might get from 50 to 90 percent of that on a sale.
On eBay they go for about $20. I saw some going for up to $25 on specialized coin sites. The going rate of silver is about $13-14 per ounce so the coins value is almost double the going rate of the silver. Maybe if you hold on to it the price will increase.