Saints of Kaluga: Saints Lawrence (Fool-for-Christ), Ambrose (of Optina Monastery), Paphnutius (of Borovsk) and Tikhon (the Tree-Dweller) of Kaluga.  Russian Orthodox Icon.

Sizes: 

#643 - M (3½" x 4" on ⅝" wood). 
#960 - ML (5" x 6¼" on ¾" wood).  

Icons manufactured by a Russian supplier using their proprietary process of applying successive layers of color and metallic-like patterns resulting in a brilliant, detailed, and nearly three dimensional appearance.

Icon inscriptions in Church Slavonic.