Moleben Mother of God (Theotokos).  Russian Orthodox icon.

Sizes: 

#T27 - S (2½" x 3" on ½" wood). 
#746 - M (3½" x 4" on ⅝" wood). 
#854 - ML (5" x 6¼" on ¾" wood). 
#1182 - L (6¾" x 8¼" 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.