AN ICON SHOWING STS. CONSTANTINE AND HELENA Russian, circa 1800 Tempera on wood panel. The background made of silver, covered by a golden lacquer. Worm holes, losses, restored. 36.4 x 29.5 cm. ICON WITH Saints CONSTANTINE AND HELENA Russia, circa 1800 Single panel with two back sponki (one lost). Egg tempera on chalk ground, silvered background glazed gold. 36.4