Kazan Mother of God (Theotokos), in portrait form.  Russian Orthodox Icon.

Sizes: 

#T10 - S (2½" x 3" on ½" wood). 
#710 - M (3½" x 4" on ⅝" wood). 
#831 - ML (5" x 6¼" on ¾" wood). 
#1173 - 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.