How much is a buffalo nickel worth that is worn down to where there is no date? I found a cache of 39 of them in a mason jar in the woods about 8 inches down. Thanks.
To be honest I don't know the science behind it but I do know it works, some coin stores carry a item called nic-a-date which does the same thing, although I heard that tarnishes the coin very bad. The vinegar will also tarnish the coin but not nearly as bad. I did a roll of dateless buffalo nickels a couple weeks ago and it raised all the dates except for 3 of them. I should add to make sure all the head sides of the coins are facing up and if you notice a green or blue substance start to form on any of the coins change the vinegar. Let me know how you make out.