However , among his acquisitions there were items widely considered to be a fake .
During his tenure as curator , Frel considerably expanded the collection of Greek and Roman artifacts , transforming it to one of the leading museums of the world .
Among Frel 's acquisitions there were items widely considered to be a fake .
During his tenure as curator , Frel considerably expanded the collection of Greek and Roman artifacts , transforming it to one of the leading museums of the world .