[She frowns thoughtfully as she looks it over. It really does seem to be empty!]

Right. Real curious, ain't it? Everytin' else 'ere 'as got sometin' in it. You'd expect to see a familiar face peekin' outta this frame, like all them other pictures around. [She tries to hold it up from various angles to try to figure it out. No luck yet! But as she keeps on thinking of the other pictures in comparison, some images of Gregson may flicker about.]