Watch List notes:

Catherine II (1762-1796), 10-roubles, 1766 СПБ, rev., РОССЇИС, 12.92g (Bitkin 12; Diakov 123), very faint edge marks, good very fine Ex Galerie des Monnaies auction, Geneva, 22 June 1978, lot 2602.
Estimate: 3000-4000 GBP