Hopefully we are back on track.
I can't tell if it is riveted. If it is, definitely a 40's sheath, possibly into 1950 - unless a Moore. The thing is the stone pouch flap does appear to be narrow, so that would eliminate the early time period.
The appearance of the spacers is difficult to pin down. What they look like in the photo may not be what they are, just not clear enough.
What appears to be a wider throat would seem to indicate earlier.
Most telling is the lack of a butt cap. It is not stag or ivory, and so it would have to be wood or micarta.
I don't know if the shop ran out of brown buttons also, perhaps it they used the same snap Heiser did to maintain some continuity to a certain degree until bb stock was replenished at Heiser. Not always though because you do see an occasional sheath with both the metal and a brown button, generally on the keeper.
From what is available, and what we can see, narrow flap, no buttcap, I am gonna go later 50's to early 60's time frame.
As a footnote, this knife/sheath could be from the same time period:
http://www.ebay.com/itm/Randall-Knif...53.m1438.l2649