Saint John the Theologian.  Russian Orthodox Icon.  Open Gospel is from the Gospel of John: "In the beginning was the Word, and the Word was with God, and the Word was God.  The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made." (KJV, John 1:1-3)

Sizes: 

#187 - S (2½" x 3" on ½" wood). 
#540 - M (3½" x 4" on ⅝" wood). 
#A840 - 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.