Two old antique mirrors - try to pinpoint time period

These are two old mirrors I found while cleaning out my dad's very cluttered attic.

One looks like the mirror was cracked and then fused together somehow. The other does not have the mirror glass present.

The material on both looks and "feels" like silver but I cannot be sure.

I am trying to figure out an approx. time period...maybe they are from different eras, I do not know.

Any help will be appreciated!

Thanks,
Jim