Are you aware that a Federal Reserve dollar bill is not a constitutional dollar? Perhaps you are, but if so, do you know what a constitutional dollar literally is? Is it gold? Is it silver? Is it both? What is actually meant by a metal standard? Can the United States or any country be on two standards at the same time? Can two metals circulate as coin if there is but one standard? Or does one metal have to drive the other out of circulation? How and why does Gresham’s law work when a country uses metal coin for money? In what ways are certain statements of Gresham’s law misleading?