Answer
Tripuri is the site where Kanishka's coins were discovered. Kanishka was a Kushan emperor who ruled from 127 to 151 CE. His coins were found in Tripuri, which is located in the Indian state of Madhya Pradesh. The coins are made of gold and silver and depict Kanishka on one side and various deities on the other side. The coins provide valuable information about Kanishka's reign and the Kushan Empire.