Unknown Vintage Western Thunderbird Engraved Southwest Native Style Belt Buckle

This vintage western Thunderbird belt buckle features beautiful engraved scrollwork and a rope boarder around a raised Thunderbird. The buckle is brass colored, likely brass plated, with a lovely antique finish. It measures 3 /12 x 2 1/4”. Has some minor scratches and wear consistent with its vintage age but in generally good condition; very wearable. I have not cleaned this buckle to preserve its vintage patina.