одесский ювелирный завод. Soviet Wide Band Ring Rose Gold 583 14K , eBay. Russian wedding ring, vintage, probably from 70s because rose gold was a hit that time, new in the ugly plastic box which you may keep as a souvenir from the Soviet Era, clear stamps for the gold with the Soviet star with sickle&hammer and 583 (~14K) and gold manufacturer stamp "8OЮ", stands for ...