This Bianchi Cobra sling has the early style makers stamp and no model number.  At the widest, the width is 2 1/8" and it tapers down to 1" at the quick detach swivels.  The leather, suede lining, and pouch are all excellent.  The stitching is still bright.  The little leather keeper was secured together with brass cleats and verdigris deteriorated those, so while the keeper is fine, it will need to be stitched together to make the sling 100%.  If you are putting together a vintage 60's or 70's style bolt gun package, this would be a nice compliment to one of those classics.