This authentic silver coin was issued during the reign of Naser al-Din Shah Qajar, one of the most influential rulers of the Qajar Dynasty. Struck at the historic Herat Mint in 1278 AH (1861–1862 AD), the coin represents an important period in Persian monetary history and reflects the artistic and calligraphic traditions of nineteenth-century Iran.
https://coinsnantiques.com/collection/qajar-naser-al-din-shah-qajar-silver-coin-herat-mint-1278-ah/