Curators research provenance thoroughly prior to acquisition, making every effort to obtain reliable documentation that the object left its probable country of modern discovery prior to 1970 or was legally exported from the probable country of modern discovery after 1970. If such documentation cannot be obtained following diligent research, the Gallery will retain its right to exercise institutional responsibility to make informed and reasonable judgments about the appropriateness of acquiring works of art.

Research is ongoing and objects with unconfirmed provenance will be added to this list as they are found.