To enrich the repository of the National Museum of Mongolia, the Ministry of Education, Culture, Science and Sport has purchased paper money dating back to the Yuan Dynasty from private collector O.Otgonbaatar, and 200 silver coins from the Sasanian Empire from private collector D.Zandaakhuu. The paper money, made from palm tree fiber, is inscribed with the square script (Durvuljin Useg) created by Lama Lodoijaltsan (1235-1280). Some researchers consider the paper notes used during theYuan Dynasty to be the first paper notes ever used. Songinokhairkhan resident O.Otgonbaatar said his mentor Jamsranjav gave the note to him before he passed away. Jamsranjav is believed to have inherited it from his father, Rinchen, who received it from Zava Damdin. Rinchen told his son that a saint from Zavkhan Province gave the paper note to Zava Damdin. Sources suggest that the saint was Diluwa Khutugtu Jamsrangjab (1883–1964), who was a Mongolian noble, a Tibetan Buddhist tulku, politician, and a Mongolian-American scholar. Silver coins of the Sasanian Empire[/caption] Although the silver coins of the Sasanian Empire were never used in Mongolia according to historical records, D.Zandaakhuu said the 200 silver coins acquired by the museum were found in a leather bag discovered in Arkhangai Province. The Sasanian Empire was the last Iranian empire to rule before the rise of Islam, ruled by and named after the Sasanian Dynasty from 224 to 651 AD.