The coins of the Gupta Empire provide vital evidence for our understanding of the history of ancient India. They are the most numerous surviving official documents of this important period in the development of India as a nation.
During the Gupta period Indian imperial power became defined in new ways and the ancient religions of India became focussed through imperial patronage into the forms we now recognise as Hinduism. It was a period that has been justly described by many as a golden age.
Source: https://www.academia.edu/30145861/Treasures_of_the_Gupta_Empire?email_work_card=view-paper