The Democratic Republic of the Congo has issued gold miniature coins in this format since the mid-2010s, targeting the collector market rather than any circulation purpose — the country's actual currency is the Congolese franc, and denominations of this kind exist purely as legal tender fiction. At 0.5 g of fine gold, the intrinsic value vastly outpaces the face value, which is the point.
The Democratic Republic of the Congo has issued gold miniature coins in this format since the mid-2010s, targeting the collector market rather than any circulation purpose — the country's actual currency is the Congolese franc, and denominations of this kind exist purely as legal tender fiction. At 0.5 g of fine gold, the intrinsic value vastly outpaces the face value, which is the point.