Such small half-length or shoulder-length
images are for private prayer and would be used in a domestic setting. A
traditional Russian Orthodox house would have a special shrine or ‘beautiful
corner’ (krasnuiy ugol) in the main room consisting of a shelf or shelves
across the angle in the corner on which were family icons: Christ, the Mother
of God, Saint Nicholas, name saints of family members and others icons of
special significance to that particular household. A person entering would
venerate the icons (bowing towards them and crossing themselves) before
greeting the people in the room.
The church authorities had decreed that Andrei Rublev’s famous
prototype, painted in 1408, should be used as a model by icon painters. The
form of painting varies little from the 16th to the 19th
century.