1/2 Kopeck 1876, Ekaterinburg Mint, EM. 1.04 g. Bitkin 441 (R2). Extremely rare, especially in this quality. 15 roubles according to Petrov. 25 roubles according to Ilyin. Extremely fine-uncirculated.

From the Soedermann Collection, auction SINCONA 19, Zurich, October 2014, lot 839 (price realized: CHF 50,000).

Not encapsulated by both NGC and PCGS with stated reason "NO DECISION". Sold as is, no return.