The Imperial Seal of the Mongols is a seal (tamgha-тамга) that was used by the Mongols. The imperial seals had inscriptions in Mongolian script or other scripts that used in various Mongol regimes such as the Mongol Empire and the Northern Yuan dynasty. According to Plano Carpini, the Russian handicraftsman, Kozma, made a seal for Güyük Khan. This seal might have been a seal used to stamp the letter to Pope Innocent IV. Bogd Jivzundamba, ruler of the Bogd Khaganate had a tamgha (seal) with the inscription "Holiness - Bogd Khaan who holds religion and authority" in the 20th century.