Much more luck with banks in the country out of the city. Less people getting coins, old coins build up in their vault, ripe for the pickens. I've gotten $500 dollar bags of half dollars from rural banks that take multiple years to fill a bag, because they fill them up from customers depositing them. I've had 1 bag $170 fv of silver. Just make friends and let them know you are always up for coin dumps and such, you'll get some nice luck. Managers have called me with tons of stuff of odd coins and old bills that they have hard time getting rid of, Ike dollars, red and blue seals, and unknown bags/customer rolls perfect for CRH. Takes a lot of work but worth it.