Date of entry into circulation: 12 July 2017 Technical characteristics Nominal 1 Metal sreblo (Ag 999) Weight of expensive metal in cleanliness, g 31.1 Diameter, mm 38.6 Category of hardness carbuvanny proof Edge smooth with buried writing Circulation, pcs. 10000 Series: Other Coins The commemorative coin is dedicated to Archangel Michael - the archangel, who is one of the most famous biblical characters. .