RUSSIA. Quintet of Uniface Die Trials (5 Pieces), ND (1989). Leningrad Mint. All NGC Certified.1) Platinum 150 Rubles uniface Reverse Trial. Cf. KM-Y-227. NGC PROOF-69 Ultra Cameo.2) Gold 100 Rubles uniface Reverse Trial. Cf. KM-Y-226. NGC PROOF-67 Ultra Cameo.3) Gold 50 Rubles uniface Reverse Trial. Cf. KM-Y-225. NGC PROOF-67 Ultra Cameo.4) Silver 3 Rubles uniface Reverse Trial. Cf. KM-Y-223. NGC PROOF-64 Ultra Cameo.5) Silver 3 Rubles uniface Reverse Trial. Cf. KM-Y-222. NGC PROOF-64 Ultra Cameo.An incredibly attractive and interesting grouping, all featuring highly brilliant reverses and even, unfinished obverses. VERY RARE.