Date of introduction into obіg: February 26, 2002 Technical characteristics Nominal Metal Masa of expensive metal in purity, g Diameter, mm Category of carburation hardness Edge Circulation, pcs. Actual circulation, pcs. 10 silver (Ag 925) 31.1 38.6 proof corrugation 3000 3000 Series: Heroes of the Cossack Dob Dedicated to a prominent Cossack military leader and an active participant in the free war of 1648 - 1654 rubles, the glorious cat otaman of Zaporizhzhya Sich, who launched successful campaigns against the Crimean Khanate and the Black Sea Turkish forts. Thanks to natural intelligence and uninterrupted talent I. Sirko (born unknown - 1680) becoming one of the most prominent government officials and diplomats of that time. The obverse of the coin depicts the title composition for this series, which embodies the idea of unity of Ukraine: the small Sovereign Coat of Arms of Ukraine is supported by the armorial figures of Archangel Michael and the crowned lion - symbols of the places of Kiev and Lviv, stylized inscriptions: UKRAINE, 2002, 10, HRYVEN, the logo of the Mint, as well as the markings of the metal, its purity - Ag 925 and the purity of the coin - 31.1 battle scene: Cossacks The tops under the wire I.Sirka (right-handed) re-examine the enemy, which is the image on the ground. Between the outer edge of the coin and the right hand side there is a stylized inscription IVAN SIRKO, below - the date of death 1680.