Date entered into circulation: 25 April 2008 Technical characteristics Nominal Metal Mass, g Diameter, mm Category of quality carbuvannya Gurt Actual circulation, pcs. 2 nickel silver 12.8 31.0 special uncirculated corrugations 35000 Series: Some special features of Ukraine Dedicated to the great witch doctor, one of the most famous mathematicians in the church, George Voronoi, who was born in 1868. Georgiy Feodosiyovich Voroniy enters mathematical science with significant indications, like wearing it. The sphere of zasosuvannya yogo fragmentation - from computer graphics to geometric models and stems of piece intellectu. It's our hour for Voronoi's robots to vikoristovyvatsya fakhivtsy of the young galuzei knowledge is practically in the countries of Europe, the United States, Canada, Japan, Australia, Hong Kong, New Zealand and New Zealand.