XII-XIV century
Oblate sphere, with rhomboidal protuberances along largest circumference. Intact, surface covered with resoluble acrylic film.
D. 2.2″ (5.6 cm), H. 1.4″ (3.6 cm).
See: W. Swietoslawski.Arms and Armor of the nomads of the Great Steppe in the times of the Mongol expansion. Lodz, 1999, p.128.