1.   But the Getty quickly returned the artifacts to the anonymous collector who had loaned them.

2.   The winner, who bid by telephone, was identified by the auction house only as a anonymous collector.

3.   An anonymous British collector bought the car, which had been a present from the Emir of Bahrain, Sheik Isa Bin Sulman Al-Khalifa.

4.   An anonymous British collector bought the car, which had been a present from the emir of Bahrain.

5.   An anonymous collector bought the Jenkins Venus, also known as the Barberini Venus, a marble depiction of the goddess of love.

6.   Anonymous private collectors traded on the black market.

7.   The anonymous collector agreed to sell the lantern to the gallery, however, and curators will now display it next to the work of art, she said.

8.   The newly-authenticated painting, owned by an anonymous Dutch collector, will be on display at the Rijksmuseum for just five days.

9.   The signed piece of paper was sold to an anonymous collector Monday night in Melbourne.

10.   They were sold to an anonymous collector Monday night in Melbourne.