Roth took a solarized photo of the Swiss collector, and painted over it with processed cheese "in order to get his goat.

The weak dollar is attracting many foreign buyers to these shores, particularly German and Swiss collectors.

The Swiss collector who bought it was not identified.

The owner was identified only as a Swiss collector.

It is currently owned by a Swiss collector.

The painting, sold anonymously by a Swiss collector, went to an unidentified American bidding by telephone.

Although not known for certain, the painting is believed to be in the hands of a Swiss collector.

The sculpture was bought by a Swiss private collector who was not identified.

Samuel Josefowitz, a Swiss collector, amassed the 17 paintings and 84 prints, worth an estimated $30 million.