Russia. Uniface Obverse and Reverse Die Trial for 100 Roubles, 1991. As Y-288. Obverse 18.6 grams and Reverse 18.2 grams. Uniface obverse and reverse die trials struck on copper-nickel planchets. Obverse: National arms with CCCP and value below. Reverse: Ballerina. For the Bolshoi Ballet. Lot of 2 coins. PCGS graded Obverse Specimen 67 and Reverse PCGS graded Specimen 68. Estimated Value $150-UP