this has got to be the worst site for reaserching value every coin that ive seen on there is way off and the site is quated a lot on other forums "Value: As a rough estimate of this coins value you can assume this coin in poor condition will be valued at somewhere around $5, while one in "perfect" condition can bring $575. This price does not reference any standard coin grading scale. So when we say poor, we mean worn more than would be expected from a coin in this age, and perfect meaning it looks "perfect" without flaw and possibly even certified. [?]." "poor, we mean worn more than would be expected from a coin in this age," this would equal melt "This coin in poor condition is still worth $3.03 more than the intrinsic value from silver content of $1.97" http://cointrackers.com/coins/224/1917-s-mercury-dime/