Our business manager gets the bullion, while the other, a gold miner perhaps, takes the gold coin.
Then our business manager stamps the bullion he has bought--one hundred dollars' worth--into five new twenty-dollar gold pieces.
"With these in his palm he is ready for another bargain with the gold miner.

Again the miner gets the gold pieces, and again our business manager gets one hundred dollars' worth of yellow bullion.

This he coins; and being thereby re-equipped with five more new twenty-dollar pieces he returns to the experiment.
"This barter and this coinage might go on while a grain of the world's gold remained uncoined.

At the finish, our business manager would have only one hundred yellow dollars in his fist; but there would be billions coined and stamped and in circulation.

And the country would be neither in nor out a dollar.