About 6%... such part of the total issue of dimes of the Kingdom of Poland (Congress) was the 1822 vintage. One of the rarest vintages, with a mintage of only 233 pieces.
Coins associated with an artificial state organization, however, coming from the first issue containing only Polish inscriptions on the coins in their entirety! A milestone that was soon to disappear due to repression after the November Uprising.
Obverse: head of the Tsar to the right, in the rim the legend:
ALEXANDER I KESARSA(modzier)-W(szech)- ROS(syi)- KING OF POLAND;
Reverse: crowned eagle of the Kingdom, above it the date 18-22, by the tail the initials I.B. - intendant of the mint Jakub Benicke; in the rim legend:
10. ZŁOTY POLSKICH Z SREBRA KRAIOWEGO;