I found this piece of sterling silver yesterday and am trying to figure out what it's a part of. It appears that something is missing off the back side along the long edges. Maybe it wrapped around an was part of a belt buckle? The front side has I.A.R. etched into it in a somewhat crude manor. Custom initials? Company name? Has anyone get a good way to research that patent date? All the ones I've tried either have too many hits to even think of going through them all, or "no results". Thanks for your time.