The product is a lot of 20 silver wire coins from Russia, specifically during the rule of Ivan IV "The Terrible" from 1547 to 1584. These coins have a denomination of Denga, Kopek and are circulated, with a composition of 50% silver. They are from the historical period of the Russian Empire and have a fineness of 0.5. The coins are uncertified and have not been modified. Ivan IV "The Terrible" is known for his brutal rule and expansion of the Russian Empire during this period, making these coins a valuable piece of historical significance.