Russia. Uniface Obverse and Reverse Die Trial for 10 Roubles, 1991. As Y-285. Both pieces 1.9 grams. Uniface obverse and reverse die trials struck on copper-nickel planchets. Obverse: National arms with CCCP and value below. Reverse: Ballerina. For the Ballet series. Lot of 2 coins. PCGS graded Both pieces, Specimen 68. Estimated Value $150-UP