Re: the theory of split currency

Is there a name for a dual or split currency, in which there is one currency for domestic use and another, different appearing, currency for foreign usage?

I don't know of such a name, however...

Does anyone know of any country which has had such a split currency?

...this has been a common situation, in fact. South Africa, China, the Soviet Union, and other unpleasant places have repeatedly done this. Its usually a remarkably stupid idea. Perry