"There is very limited audience for the arty stuff, and it is largely comprised of other arty types, most of whom have no money to spend because no one is buying their stuff either. More people bring their emotions to an image than bring their intellect. The former are the folks who have checkbooks because they are engineers, accountants, and bankers—and generally they are engineers, accountants and bankers because they are not artists."
I'd put him between 35 and 45 - remember most people married and started spawning much younger than they do today, so it would be entirely possible for him to be 35 and have three teenage children. Whoever he is, it's not Hitler. This guy's jaw is too square, for one thing.