Under the bolstering of the Magic Energy Industry, the Western Continent's metal anti-counterfeiting techniques had reached a point that could be described as pathological.
Using pure gold as currency was clearly impractical.
Even without considering other complex reasons.
Without a coinage tax.
The National Bank would lose its greatest profit as well as all its capabilities including regulating the economy and preventing risks.
That would not make it a National Bank; it would just be a private account.
Just like under Aran, each Affiliated Country uses Golden Dragon for settlement, utterly exploited, the rulers all puppets supported by the Emperor, Lords waging war, chaotic and disorderly.
The Pedan Kingdom used a special crystal as currency, while Lostra used paper money.
Golden Dragon was not the most valuable currency, with one red crystal coin from Pedan Kingdom could be exchanged for two Golden Dragons and eighty Silver Mien.