An unnamed German collector bought it yesterday for $673,500.
These early works are guarded by German museums and German collectors.
A German collector recently examined antique adding machines.
Seen together, these paintings speak well for the discernment of German collectors before World War I and into the 1920's.
The buyer was a German collector known only as Mrs. Oetker.
The Brothers Grimm were German collectors and publishers of folk tales.
Hermann Schnabel, a German collector and fertilizer manufacturer, bought it for $12.1 million.
The weak dollar is attracting many foreign buyers to these shores, particularly German and Swiss collectors.
When the painting surfaced again, its owner, an unidentified German collector, put it up for sale at Christie's.
As in America, what was once illegal is now often purchased by private German collectors and businesses.