It is a Russian marking for silver. This marking was verified by a jeweler and this is a real silver set. Remember to follow us because we post new items daily. The item "SET 6 RUSSIAN SOLID SILVER GOLD GILT NIELLO ENAMEL TEA GLASS HOLDERS" is in sale since Saturday, August 24, 2019.This item is in the category "Antiques\Silver\Non-U. The seller is "magdrake2013" and is located in Lockport, Illinois. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Nicaragua, Peru, Viet nam, Uruguay.