Watch List notes:

RUSSIAN COINS AND MEDALS. Nicholas I (1825-1855). Construction of Blagoveschensk Bridge over the Neva, Silver Medal, 1850, by A Klepikov and A Lyalin after F Tolstoi, double-headed eagle over the bridge, rev Minerva guides Hercules who uses his club as a bridge, across water flowing from the urn of a river goddess, 75mm (Diakov 594.1 R2). One very light scuff, light hairlines, extremely fine and rare in silver.

Estimate: £800-1000