Watch List notes:

The Portland Collection, Commemorative Medals, Transport: Bridges, Russia, Alexander II (1818-1855-1881), Construction of the Alexander [Alexandrovsky] Railway Bridge over the River Volga, copper medal, 1880, by S. Vazhenin and (rev.) A. Griliches, head of the Tsar r., in high relief, 80mm. (Diakov 878.1, R1; Sm.912), extremely fine and rare
See note to previous lot (322).