First: Anything that is of Antique nature should be smudged a.k.a Sage/Sacred Wood (Paulo Santo??? I most likely destroyed that spelling) Meta-Physically Wood picks up on any Energy that is around, so they say.
Second: Mirrors are said to be gateway's inbetween, this is why it's stated not to have any mirrors in your bedroom. If you believe that your body
is a energy rod, then 0 mirrors should be in your room.
I.E~ The movie Constantine showed this very well when the Demon jumped from host to the mirror~
I could write more but I guess the basics would be a good place to start, whether you believe this or not is none of my concern, though if you felt a
"Lightening of Energy" after this mirror was removed you might want to check into this a little more and do a clearing of your own to make sure no
stagnent energy is still roaming around.
Here's to a good nights rest~