Watch List notes:

The Oksana Bennett Collection of Russian Coins | Alexander II Nikolaevich (1855-1881), Rouble, 1857-CNB, St. Petersburg, Feodor Blum, crowned double-headed eagle, rev. crowned value in wreath, incuse edge lettering, 20.71g, 12h (Sev. 3655; Uzd. 1733; Diakov 79; Bitkin 47), cleaned with resultant hairlines and scratcg across reverse, otherwise residually lustrous, a bold very fine

provenance
Kunker 310, 21 June 2018, lot 7068