Depositing coins?
Try old fashioned laundromats, car washes, arcades and vending machines. Often used to launder illicit funds.
We had at least one FReeper that used to run a vending machine route on Staten Island. That made my world look easy.
When I started my vending routes, we used to occasionally get silver coins in the boxes ... yeah, it may have been a while ago.
He owned a coin shop and often got in bags of statehood quarters which he paid even money on. (as they had no collector value) I would think with a coin operated business you tend to keep the quarters in circulation and only deposit bills.