i think those are WWII handgrips, not WWI. my black army from the same time frame quoted has wood double diamond grips.
there should be a small SG eagle stamped right above the mag release button, and right in front of that button on the trigger guard on mine is 22. the slide release and safety button on mine has a checkerboard pattern, not lined.
the hammer spur looks a little different too.
not mentioning this stuff to be critical, but there are differences.
as the stocks were wood in WWI.
No offense taken.
