That's the one and only original Altgens photo that Backes is claiming that Sprague examined. How does Backes claim to know that?
Here is the personal letter that Sprague wrote which contains the controversial, and in my opinion idiotic, claim that there is another African-American man on the sidewalk.
I realize you may not be able to read it, but Sprague says a lot of stupid stuff about his analysis of the doorway figures, but at no point does he claim to have examined the original Altgens photo.
So, on what basis is Backes claiming that he did?
I'm going to need a source for that, Backes.