
As the king's Master of Coin,
I can think of no one more qualified.
Game of Thrones Season 5, Episode 4

I'm Master of Coin.
Saving money is important.
Game of Thrones Season 3, Episode 5

If only the Master of Coin had such power.
Game of Thrones Season 3, Episode 3

that if you flip a COIN,
The Big Bang Theory Season 7, Episode 19

and a COIN from Braavos.
Game of Thrones Season 3, Episode 8