Date entered into circulation: 25 April 2018 Technical characteristics Nominal Metal Mass, g Diameter, mm Category of quality carbuvannya Gurt Circulation, pcs. Actual circulation, pcs. 2 nickel silver 12.8 31.0 special uncirculated corrugations 35,000 35,000 1989). Created by a prominent designer of engines, they were able to drive and drive alongside ships, space ships, and rocket launchers. Valentin Glushko is the author of more than two hundred scientific works from the nutrition of rocket and space technology, zokrem dvigunobuvannya, laureate of State Prizes, awarded the gold medal of the name of Tsiolkovsky.