Mirror, beveled,oval

I have a antique?mirror that I got from a thrift store,along with3 more. It appears to be possibly meant to be laid down on a table but also has a chain for hanging It. I know nothing about it. It has no markings on mirror or wood. It measures22"long,13"wide in middle,and 11" wide at fasteners.Wood and mirror together is 3/4"thick. It has peeling around edges,some chips where fasteners are,random dots showing through more around outside edges. All hardware appears to be old and chain may be hand made. Wood is veneer. Any knowledge of age,value or any thing is greatly appreciated. Thanks in advance.