As with many degrees from elsewhere, holders of a Lambeth degree are entitled to wear academic dress. However, the academic dress worn is not unique, original or exclusive. The tradition is to wear the academic dress of the institution from which the archbishop graduated, which has always been either Oxford or Cambridge except for George Carey, who is a graduate of the University of London but followed tradition and chose Oxford dress. The then Vice-Chancellor of the University of London, Graham Zellick, attempted to see if London academic dress could be used but his attempt proved fruitless. It is uncertain whether robes from a university other than Oxford or Cambridge can be used when the archbishop is not an Oxford or Cambridge graduate.