The "kraiowey copper" grosz in the extremely rare version of the new minting.
In recent years, at auctions in Poland, listed only once (in 2016). Earlier listings from the 1990s.
Issued by the Mint in Warsaw, from the late 1850s, made with refreshed original stamps.
Beautiful mint condition. Coin with Proof Like effect, a mirror of the fresh stamp print, characteristic of new mints.