Watch List notes:

The Oksana Bennett Collection of Russian Coins | Alexander I Pávlovich (1801-1825), Copper 5-Kopeks, 1810-KM, Kolyvan, crowned double-headed eagle, rev. value and date, edge obliquely grained, 52.82g, 12h (Brekke 138; Uzd. 3088; Diakov 101; Bitkin 427), light edge bump at 1 o'clock otherwise, near extremely fine and very rare

provenance
Gorny and Mosch 205, 8 March 2012, lot 6159
Gorny and Mosch 173, 17 October 2008, lot 8516