Best Deposit Ever!

There are appropriate times and places to contemplate the moral aspect of acquiring coins. This wasn't one of them, in my opinion. The OP was doing his job, on his employer's time.

So what became of these little treasures?

At my LCS, you sell silver/gold/valuable coinage your driver's license is photographed along with the bill of sale. I suspect that once folks realize that they will be tied to a transaction, the stakes change especially when a coin is 'lifted' in some manner. At least at the bank or 7-Eleven your photograph/identity wont be immediately tied to a transaction (aside from the surveillance camera and a bulletin on 'who is this person of interest?'). Less conspicuous places are even better for thieves to unload stolen items (even at face).

Folks on the receiving end aren't typically obligated to inform folks legally as noted above. The moral aspect does play here though. I recall a CCF member pleading with an old lady to take her silver dollars to the LCS but she went ahead and deposited them anyway. It was a righteous effort on their part! I think had the OP told the 20 YO to take them to the LCS for a better payout, it might have answered the question regarding the authenticity of ownership. I can't say that my eyes wouldn't have popped but I like to think I'd have given the customer the option. But while working, this may not be a practical response. I guess it depends on bank policy.

Fair point carnold. As a teller, you are probably right. I didn't mean to ruffle any feathers.

Hey..When they need to feed an addiction..I guess you do what you have to!