This want last long. See Gresham’s law of money.
CC
The "bad" paper rubles will drive out the "good" gold rubles. Which is exactly what happens with the US Mint's gold and silver collectors coins - they are never circulated unless some kid breaks into his dad's coin collection to buy candy.
I had originally thought it was Russia's attempt to move their money back to the gold standard. After looking at the numbers it is just the Russian treasury selling collectible gold, probably at above the spot rate for gold and to be able to coin it they have to give it some nominal value in rubles.