Help determine the value of the icon
 

Good time of day.

Help please to determine approximately what an icon on the photo and if possible the approximate value. Size approximately 25x35 board, the board slightly arched.
On the reverse side of the tree embossed inscription: Mikolsko. .. more difficult to parse text.

Thanks for any information.

It's called "Tikhvin Virgin.

Probably Tikhvin Mother of God.

Thank you.

Left icon appears * Vladimir Mother of God *

No, the icon alone.

Yes, the icon is the same.

Then * Jerusalem Theotokos *