Help identify!
 

The icon of St. Nicholas , the approximate size : 600mm X 460mm .
Made on the canvas , apparently oil.
Last 98 years was in the Kyiv region , region of origin allegedly Siberia ( great-grandfather in 1915 he moved to Ukraine from Irkutsk ) .

If you can tell me all that concerns this work and if possible an estimate .

Oil, beg.
20th century provincial "academic", the whole thing uninteresting and illiquid, but maybe someone somewhere someday and wants to pay 15 30t.r.