Rare variety of 10 penny note with a dot after 10 on the reverse.
According to Jerzy Chalupski's findings: "In 1848, the Cashier of the County of Lowicz addressed the authorities with doubts about the authenticity of the 1840 dime with a dot after 10. The Government Commission of Revenue and Treasury explained that the coins are original, and that the dot is an auxiliary mark used to facilitate the identification of coins minted with a retroactive date in later years." (J. Chalupski: Catalogue of Pass Coins of the Kingdom of Poland 1835-1841", 2021)