What is unusual about the narrator's description of the pictures in Mr. Bates' office in Invisible Man

He found the men in the picture looked down with assurance and arrogance that he rarely sees,

"It was hung with three portraits of dignified old gentlemen in winged collars who looked down from their frames with an assurance and arrogance that I had never seen in any except white men and a few bad, razor-scarred Negroes. Not even Dr. Bledsoe, who had but to look around him without speaking to set the

teachers to trembling, had such assurance. So these were the kind of men

who stood behind him. How did they fit in with the southern white folks,

with the men who gave me my scholarship? I was still staring, caught in the

spell of power and mystery, when the secretary returned."