Russia 1 Polupoltinnik 1792 СПБ-ЯА St. Petersburg. Catherine II (1762-1796). Obverse: Bust of Catherine II right. Lettering: Б•М•ЕКАТЕРИНА•II•IМП•ИСАМОД•ВСЕРОС• СПБ. Reverse: Crowned double-headed eagle. Denomination; date. Lettering: 17 92 ПОЛУПОЛТИННИКЪ Я А. Silver. Edge cordlike leftwards. Bitkin 354. NGC MS 61 ONLY 2 COINS IN HIGHER GRADE