When I first started working their a young kid came in and had a bunch of really old halves and large dollar coins. He traded them in and I paid them no mind. The man in line behind him seen them and asked if he could buy them and I gladly obliged. About a week later the cops came in asking if we had taken in any unusual amounts of old halves and dollar coins. I let them know the situation and the kid got in trouble for stealing these from a neighbors house. I never really looked over them but the officer said the coins were worth over 2500 dollars. Their might have been 15 dollars face value.
Pretty much the same rules applies, I can buy any money that I want but I first have to sell it to another teller and then buy it back off her using my own money. So someone else processes it not myself.
Thats the way to get them, I have someone that always collects 2 dollar bills. He brings me in gift cards, donuts, etc and we make sure all 2 dollar bills go to him.
Mike, my wife worked in one of the big banks before we were married and for about a year or so afterwards. One of the things I got her to do was to round up all the foreign coin that came through there and got snatched up by the rejector mechanisms in the counting machines. Send the word out that you want all the foreign stuff. My wife's bank used to just toss that into the trash. You won't believe some of the cool foreign coins I got that way.
I dont weigh the rolls and I didnt even open them before I started looking for silver. All we have to do is run a magnet over the roll to make sure their is no foreign and besides that we dont check them. I live on a river that borders Canada so we get alot of Canadian coin. Also we do not have a change counting machine. Customers must roll coin if they are exchanging it and it is over a roll.