The act was signed by Ronald Reagan in 1985. One requirement is that all gold used in minting the coins would be from "newly mined domestic sources".
The case of Ling Su Fan v. United States establishes the legal distinction of a coin bearing the "impress" of the sovereign:
The case of Thompson v. Butler establishes that the law makes no legal distinction between the values of coin and paper money used as legal tender:
Surprising Success Can Grow out of What Appears to Be a Disaster; We Remain in Tough Financial Times. but the Lessons of History Show That Apparent Economic Disasters Can Sometimes Have Unexpectedly Beneficial Results, as Mike Hedges AM Argues
Nov 08, 2012; TWICE in the 20th century Britain made choices regarding its currency that, at the time, appeared to be disastrous but proved, in...