Does The Fed Reserve Have Old Coins? Or Only New?

Does anyone know how it works in Canada? I imagine it would be similar. I have two friends that either have worked or do work for a bank. Unfortunately they don't live close to me so I can't take advantage. I did ask one if they search coins wrapped that they receive and he said no. But I do know some tellers do go through loose change they receive. If you have any specific questions I can ask let me know. Unfortunately it will only be what happens at the bank. In terms of brinks and the mint I'm still in the dark. I too would love to know what happens there. On a side note does anyone know how to get 50 cent coins at fv in Canada? I know silver would be unlikey as it's bigger than non silver however, I wouldn't mind trying to put a set together.

Appreciate any feedback.

so many rumors persist about the so called removal of silver - its just a myth thats all and most tellers really have no idea where the coins come from they just assume it must be from the fed and the armor cars deliver it all (they dont know those armor services have facilities )