Help me out here De.
What I'm seeing is extremely strange. (See correction.)
Back around 1971 Nixon took the U.S. off the Gold Standard.
( https://www.federalreservehistory.org/essays/gold-convertibility-ends )
And the U.S. was supposed to redeem American currency at the rate of $35 an ounce.
Around 1971 (according to this site) gold was selling for just under $300 (Wrong) an ounce . .
( https://www.macrotrends.net/1333/historical-gold-prices-100-year-chart )
Correction. There was a block labeled 'inflation adjusted'. I clicked it off and got 'better numbers'. It seems in 1971 gold was running from $37 to $43 an ounce.
But, what was to keep enterprising foreigners from redeeming dollars for gold at $35 then selling the gold for more?
Zim.
Mad Poet Strikes Again.