Answer: seigniorages

AnswerCrossword Clue
seignioragesProfit made by a government by issuing currency, esp. the difference between the face value of coins and their production costs
seignioragesThe Crown's right to a percentage on bullion brought to a mint for coining
seignioragesA thing claimed by a sovereign or feudal superior as a prerogative
seignioragesSEIGNIORAGE, a government revenue from the manufacture of coins calculated as the difference between the monetary and the bullion value of the silver contained in silver coins