I hope you saw the man hiding which is what makes the image, IMO.
The edges are from the negative holder being slightly wider then the negative itself. I never crop my images so all my prints have this border that I personally find quite appealing.
That's exactly what I saw at the Diane Arbus exhibit. It's beautiful, and so much simpler than the stark white borders (which will always be ever-so-slightly misaligned). My only question is, where do you get a negative holder slightly larger than your negative? Mine barely leaves room for the edges.
In other worlds he has
darker days, blacker swells.
Strokes that mix noir revenge
on waves of grey.