 The coin that he received as a gift came from the Ptolemaic Dynasty in Ancient Egypt—a silver tetradrachm of Ptolemy I, Soter, pharaoh between 305 and 283 B.C.Malter sought more ancient coins to collect, research and use in school to help educate his students.His strong passion for learning as much as he could about ancient coins and then teaching what he had learned to his students made his ancient-history class one of the most sought-after courses in the entire school.