Yeah, the ring has a distinct look that someone out there would probably recognize. And he might not be left handed but holding the gun that way to look around tgat rock.Bless the Mangold Family for their sacrifice.
I agree 1917 … Big Bore
I'm looking at the cylinder bore compared to flashlight & ring.
Another,, maybe observation? Do I see a Large ejection rod knob,, (reflection) ?
Saw this pic on YouTube and also think it's a 1917.
Somewhat surprised that he wears corporal stripes; very few E-4 corporals at that time (I was a Sp4 a couple years earlier). Looks like 173rd Airborne Inf.; a fine outfit.