The article of the senior researcher of the department of numismatics and epigraphy of the National Museum of History of Azerbaijan of ANAS, doctor of philosophy on history Aygun Mammadova "Kashin money of the XV century found in Agsu region of Azerbaijan" (in Russian, co-author Russian specialist Vasily Zaysev) in St. Petersburg published in the collection of scientific articles "Medieval numismatics of Eastern Europe".

According to Tehsil.biz, the article provides information about a copper coin (1.77 g) minted in Kashin region of the Tver principality, discovered in 2010 during archeological excavations in the medieval city of "Ruin City" of Agsu region (head of the expedition, Professor Gafar Jabiyev). , Numismatic conclusions on trade relations of the Shirvanshah state were presented.

The coin involved in the article is currently preserved in the museum's Numismatics Fund.