Mirror

I am in an old shop, filled with old carpets from the Middle East and antique treasures.
There is a mirror I have been coveting.
I have dreamt about this mirror before or have some strange feeling of recognition that I cannot place. It is a large oval mirror, the size of an adult and it's attached to a solid base, so it can stand alone anywhere in a room.
I run my fingers over the carved, cherry wood....the woodworker has decided to make the edges into waves, resembling mermaid's hair. As I admire it, I discover a hidden mirror on the top- it can be pulled out or pushed back. When I pull it out, the bottom mirror is useless- it has stopped capturing my reflection and only in the square mirror on top can I see myself.