Date entered into circulation: 12 April 2012 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 30000 Series: Sport An important stage of the sport life is dedicated to the Olympic Games XXX, which is taking place in 2012 in the city of London.