Icon Solovetsky Miracle Workers
 

Help to determine the time of writing the icon of the Solovetsky Miracle workers:
the basis of the whole Board,2 keys, mortise end, 2 cylindrical inner. Was under the salary. size h

2nd half of the 19th century.Probably after 1880

Took another photo
 

Linseed oil is much darkened.
If someone else have any opinions on this icon then write and explain please. I'm interested in everything. I brought her from the North of the Kola Peninsula.

Con. 18 - early 19 century (this is evidenced by paleography napisany, in my opinion) , maybe North, Solovetsky letters.