Valutastark

From an article in the New York Times Book Review, October 9, 1921, p. 41:

"Valutastark" means, literally translated, exchange-strong. It is a word coined in Germany to describe a person sojourning today in lands where the currency is depreciated, whose funds come from a land where the currency is not depreciated at all, or, even if below normal, is, nevertheless, better than that of the country where that person is staying.

The author describes in some detail how comfortably an American could live in Berlin during the Weimar hyperinflation.