Russia
Nicholas I Rouble 1828 CПБ-HГ AU Details (Surface Hairlines) NGC, St. Petersburg mint, Bitkin-106, KM-C161. Considerable remaining luster, with moderate handling marks. The strike is so soft in the centers that it has produced an interesting error. On the reverse the middle letter E of the word CEPEБPA is completely missing, leaving CEP БPA.
Estimate: 400-500 USD