Losnummer 859. 5 Zlotych or 3/4 Ruble, 1839-HF. H-329; Sev-3300. Brilliant with light peripheral toning and a few light hairlines. This piece and the similar piece of the same date in the 1839 Proof set which will be sold later in the sale are the only two specimens known outside of museums. Of the highest rarity. Proof.