twin portraits , one by nicholson , the other by gainsborough , since 1990 among the most looked - after paintings in the art loss records database , were seized this week when they were carried into fetched ' s for investigation . also a self-portrait by dutch artist hjalmar munch , stolen from an aberdeen art gallery in april , has been recovered , news reports said that .
These two portraits and a lithography by Edvard Munch were recovered using the Art Loss Register database.