So it's not quite the same thing but the US government has historically performed a sovereign devaluation of its currency. I am of course talking about FDR (Ex

So it's not quite the same thing but the US government has historically performed a sovereign devaluation of its currency. I am of course talking about FDR (Executive Order 6102). This made it illegal to own gold. You had to hand it in and get paid at ~$20/oz. After doing this, the US dollar (nominally on the gold standard at the time) was revised to ~$35/oz.