Mercury Dimes, Today's Value

Those dimes for the most part would be worth only melt value. With silver at $42.02, those dimes would be worth about $42.50.

The dealer where I frequently go to pick through junk silver tubs would toss every one of those circulated common date Mercs right in with the rest of the silver dimes. Cost to a regular customer like me fluctuates but would be around $2.90 per dime at the current value of silver. It takes a lot of luster and unworn features to make a common old 10c. coin worth that much. Times sure have changed. Metals markets have a lot of not-so-old-coin fanciers right behind here -->

I really doubt these will ever be tied to anything but the silver price, they really have very little numismatic value at all

One good thing about collecing 90% silver dimes is that 14 of them (the number shown in the picture), equal almost exactly one ounce of silver! Quarters, halves etc... do not lend themselves to such easy calculation...

By me a standard selling price for a Mercury dime is $3.00
This is for standard dates, worn coins though.
However, with Mercury dimes lately more and more are being found with large and small Mint Marks. For that you would have to know what a normal one looks like though.
Also, the Mercury dime is notorious for rotated reverses. Many are minor to only a few degrees but many have been found to be excessive. Such Mint errors are just now becoming popular since they are difficult to notice unless looking for them. Error collectors are now paying premiums for some that are excessive. Note that even the Red Book, pages 404 and up onr error types does not mention them.
Check yours carefully.

I hope the prices marked on these holders is not what your grandfather paid for them. None of these are worth much more than silver value (if at all) and I would bet the price of silver was MUCH lower when these were purchased (unless he bought them during the silver spike in 1979-1980).