Query: What did the Satavahanas issue embossed with their king's head?
Context: They are known for their patronage of Hinduism and Buddhism which resulted in Buddhist monuments from Ellora (a UNESCO World Heritage Site) to Amaravati. The Sātavāhanas were one of the first Indian states to issue coins struck with their rulers embossed. They formed a cultural bridge and played a vital role in trade as well as the transfer of ideas and culture to and from the Indo-Gangetic Plain to the southern tip of India.