A very rare variety, estimated with a high degree of rarity in L. Ciura's catalog (where R5 is the highest on his scale).
Variety with bordered bust and reverse with REG PO legend.
In addition, different crown of the reverse - wide, instead of the typical tapered at the base, with a cross-section.
Very nice reverse. Scratches in the background at the portrait. Lots of natural luster on both sides.