His works also are held by a number of private collectors.
Many of his works were bought by private collectors in the local area.
Now, there are at least 20 private collectors, she said.
A limited number of private collectors have also bought work.
They have been selling to private collectors for $10,000 each.
It sold for $2.2 million to a private American collector.
In 2000 the Museum sold the car to a private collector.
Both survive today and are in the hands of private collectors.
Most of the top works went to private collectors faces both old and new.
The work was acquired from a private collector for $629,000.