1. University of Pennsylvania, Ms. Coll 390, Item 3027 DS ID: DS7628 Title: Sinhalese protective charm yantras Date: circa 1700-1850.
2. University of Pennsylvania, Ms. Indic 34 DS ID: DS7888 Title: Nāgajī nai Nāgavantī rī bata Date: circa 1700-1850.