1 Karshapana - Ashoka

Ashoka's reign saw the Mauryan punch-marked coinage reach its most standardized form, the result of a centralized imperial treasury enforcing weight norms across a subcontinent-spanning economy. These karshapanas circulated alongside the administrative machinery that built roads, rest houses, and the earliest known state-sponsored hospitals. The silver itself was likely sourced from the Hindukush trade networks that connected the Mauryan west to Bactrian and Achaemenid commercial routes.

Gupta's Group IIa classification distinguishes these from earlier regional issues by the consistency of the punch sequence — a bureaucratic fingerprint of the imperial mint rather than any single city workshop.