I bought a sack of leather slings at a garage sale and found a set of Super Grade swivels in the sack. Is there a way to identify a Winchester sling?

The older Winchester catalogs have pictures of the Super Grade/ Deluxe style rifles with slings. My 1955 catalog clearly shows the slings on the above rifles. I have picked up a lot of Winchester catalogs, owners manuals, and other material over the years. I have found them to be a great sort of reference.

I didn't think about that. Should have some old catalogs or Shooters Bibles somewhere. Thanks