"The separate currency reform does serious damage to the economic recovery of Germany. Instead of a uniform German currency there will be two currencies, instead of uniform prices there will be two standards of prices. Trade relations inside the country will be disrupted. In actual fact, inter-zonal trade is becoming trade between different States, in so far as there are different currencies."
January 1, 1970
https://en.wikiquote.org/wiki/Vasily_Sokolovsky