The Wealth of Nations by Part 4 Chapter 6 Page 29

while at the same time the coin contained its full standard weight, as it has done very nearly since the last recoinage, whatever the bank might lose by the seignorage, they would gain upon the price of the bullion; and whatever they might gain upon the price of the bullion, they would lose by the seignorage. They would neither lose nor gain, therefore, upon the whole transaction, and they would in this, as in all the foregoing cases, be exactly in the same situation as if there was no seignorage.

When the tax upon a commodity is so moderate as not to encourage smuggling, the merchant who deals in it, though he advances, does not properly pay the tax, as he gets it back in the price of the commodity.

The tax is finally paid by the last purchaser or consumer. But money is a commodity with