1/2 Rupee - Prana Naranaya

Cooch-Behar occupied an uneasy position throughout the seventeenth century, nominally under Mughal suzerainty while maintaining its own coinage tradition — a small but pointed assertion of local dynastic authority. Prana Narayan's reign was the longest and most consequential of the Koch dynasty's later period, during which he successfully repelled a Mughal invasion in 1661 with Ahom assistance, a victory that briefly restored genuine political independence to the kingdom.

That military reversal of Mughal pressure almost certainly kept this coinage in production longer than it might otherwise have survived.