[bmarlowe1]

>>I agree it's not so simple. If these differences exist in all photo shoots, are not affected by the passage of time and are objective, then they would be exclusionary. Yet your own expert does not characterize them as such. So perhaps their presence is a function of the time difference between comparison images and particularities of pose.

You have made the same point several times and my answer is the same. If what you say is true, then one should be able to go though dags of famous people or photos of 19thC ball players and relatively easily find multiple feature differences between faces of the same person such as those exhibited in the C vs. A comparison. I maintain that such examples would be at least extremely difficult to find. In any case - you don't have to do it today, I am patient. I'm even willing to help you. I can certainly supply the faces.