Pul 'In the name of Nasir al-Din' temp. Batu Bulghar mint

The attribution "in the name of Nasir al-Din" places this pul within the complex devotional and political signaling of early Golden Horde coinage, where Quranic honorifics and personal name-titles were deployed on copper issues long before the Horde developed a coherent imperial mint program. Bulghar, on the Volga, was the northernmost significant urban center the Mongols inherited from the Volga Bulgars after the 1236 campaign — and it was issuing coins before Sarai existed as a city.

The Pyotr Petrov reference and the Zeno catalog placement both suggest this type is rare in documented form. Bulghar mint attribution for pre-1260 copper remains contested in specialist literature.