Watch List notes:

The Oksana Bennett Collection of Russian Coins | Alexander II Nikolaevich (1855-1881), 5-Kopeks, 1856-BM, Warsaw, crowned double-headed eagle, rev. value and date, edge plain (Brekke 214; Uzd. 3552; Bitkin 453), lustrous, almost extremely fine, very rare and not represented in the Grand Duke Mikhailovich's collection

provenance
Kunker 255, 7-8 October 2014, lot 5897