Not trying to steal Loggah's thunder, but I had never thought much about slings before this post. Here's the one on my 1916 Winchester 1894 SRC.
Could Win and Savage have used the same leather supplier? Is my sling a Savage on an old Winchester? The mysteries never end. Unfortunately, I cannot "letter" my Win as it's past the SN range for letters so I'll never know.
yooper