Watch List notes:

The Oksana Bennett Collection of Russian Coins | Nicholas I Pavlovich (1825-1855), Denezhka, 1850, Warsaw, 12h (Brekke 58; Uzd. 3485; Diakov 586; Bitkin 872), extremely fine, in NGC holder, graded MS62 BN (Cert. 4788968-005)

provenance
Gorny and Mosch 262, 5 March 2019, lot 2578